{"title":"Blue Diamonds \u0026 Gemstones","description":"\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69dd56a3-a1ac-8328-8efa-9bf0bbd7faf7-11\" data-testid=\"conversation-turn-132\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"6b7ff488-80b7-4c42-9e88-fcf273a57a8d\" dir=\"auto\" data-message-model-slug=\"gpt-5-3\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003ch2 data-section-id=\"3r377j\" data-start=\"259\" data-end=\"324\"\u003eBlue Diamonds \u0026amp; Gemstones: Depth, Rarity and Timeless Allure\u003c\/h2\u003e\n\u003cp data-start=\"326\" data-end=\"637\"\u003eBlue gemstones have long held a unique place in jewelry, symbolizing depth, mystery and enduring elegance. From the legendary allure of blue diamonds to the rich saturation of sapphires and the electric brilliance of Paraiba tourmaline, these stones captivate with their extraordinary range of color and rarity.\u003c\/p\u003e\n\u003ch2 data-section-id=\"76mohb\" data-start=\"639\" data-end=\"668\"\u003eThe Nature of Blue Color\u003c\/h2\u003e\n\u003cp data-start=\"670\" data-end=\"1064\"\u003eBlue in gemstones can range from the softest pale sky tones to deep, velvety midnight hues. This variation is part of what makes blue stones so compelling. In diamonds, blue coloration is exceptionally rare, caused by trace elements deep within the earth. In other gemstones such as sapphire or tourmaline, different mineral compositions create a spectrum of tones, each with its own character.\u003c\/p\u003e\n\u003cp data-start=\"1066\" data-end=\"1206\"\u003eThe most prized stones display strong, vivid color paired with clarity and brightness, creating a sense of depth that feels almost infinite.\u003c\/p\u003e\n\u003ch2 data-section-id=\"2119yy\" data-start=\"1208\" data-end=\"1257\"\u003eBlue Diamonds: Among the Rarest in the World\u003c\/h2\u003e\n\u003cp data-start=\"1259\" data-end=\"1481\"\u003eBlue diamonds are among the rarest gemstones in existence. Often described using terms such as fancy light, fancy, fancy intense and fancy vivid, their value is determined largely by the strength and purity of their color.\u003c\/p\u003e\n\u003cp data-start=\"1483\" data-end=\"1751\"\u003eA fancy vivid blue diamond, for example, represents the pinnacle of saturation, offering a striking and highly sought-after appearance. These stones are prized not only for their beauty but for their scarcity, often appearing in the world’s most important collections.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1da96z0\" data-start=\"1753\" data-end=\"1792\"\u003eSapphires and the Spectrum of Blue\u003c\/h2\u003e\n\u003cp data-start=\"1794\" data-end=\"2058\"\u003eSapphires are perhaps the most iconic blue gemstone, known for their durability and rich, velvety tones. Origin plays a significant role in their desirability, with stones from regions such as Kashmir, Burma and Ceylon each offering distinct color characteristics.\u003c\/p\u003e\n\u003cp data-start=\"2060\" data-end=\"2267\"\u003eFrom deep royal blues to lighter, more luminous shades, sapphires provide versatility while maintaining a timeless appeal. Their association with royalty and history only adds to their enduring significance.\u003c\/p\u003e\n\u003ch2 data-section-id=\"hvcbog\" data-start=\"2269\" data-end=\"2303\"\u003eParaiba and Modern Brilliance\u003c\/h2\u003e\n\u003cp data-start=\"2305\" data-end=\"2554\"\u003eAmong more contemporary discoveries, Paraiba tourmaline stands out for its vivid, almost neon blue-green glow. First found in Brazil, these stones are prized for their electric color and rarity, often appearing brighter than any other blue gemstone.\u003c\/p\u003e\n\u003cp data-start=\"2556\" data-end=\"2682\"\u003eTheir intensity and uniqueness have made them highly desirable among collectors and those seeking something truly distinctive.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1dan9qw\" data-start=\"2684\" data-end=\"2710\"\u003eSymbolism and Meaning\u003c\/h2\u003e\n\u003cp data-start=\"2712\" data-end=\"2939\"\u003eBlue gemstones have long been associated with wisdom, loyalty and tranquility. They are often chosen for meaningful pieces such as engagement rings or heirloom jewelry, reflecting both emotional significance and lasting beauty.\u003c\/p\u003e\n\u003cp data-start=\"2941\" data-end=\"3086\"\u003eSapphires, in particular, have a strong historical connection to commitment and fidelity, while blue diamonds represent rarity and individuality.\u003c\/p\u003e\n\u003ch2 data-section-id=\"zrukp5\" data-start=\"3088\" data-end=\"3117\"\u003eHow Blue Stones Are Worn\u003c\/h2\u003e\n\u003cp data-start=\"3119\" data-end=\"3398\"\u003eBlue gemstones offer remarkable versatility in jewelry. They can serve as a striking centerpiece in a ring or pendant, or as elegant accents in earrings and bracelets. Their color pairs beautifully with both white and yellow metals, allowing for a range of stylistic expressions.\u003c\/p\u003e\n\u003cp data-start=\"3400\" data-end=\"3572\"\u003eFor everyday wear, softer blue tones offer subtle elegance, while deeper or more vivid stones create bold, statement-making pieces suitable for evening or formal occasions.\u003c\/p\u003e\n\u003ch2 data-section-id=\"nqdtjq\" data-start=\"3574\" data-end=\"3606\"\u003eWhat Makes Them Collectible\u003c\/h2\u003e\n\u003cp data-start=\"3608\" data-end=\"3846\"\u003eRarity, origin and color intensity are the primary factors that make blue diamonds and gemstones so desirable. Stones with strong, even color and minimal treatment are especially valued, as are those from historically significant sources.\u003c\/p\u003e\n\u003cp data-start=\"3848\" data-end=\"4003\"\u003eCollectors are often drawn to blue gemstones for their combination of beauty and investment potential, as well as their enduring appeal across generations.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1oaet6g\" data-start=\"4005\" data-end=\"4047\"\u003eBlue Diamonds \u0026amp; Gemstones at M.S. Rau\u003c\/h2\u003e\n\u003cp data-start=\"4049\" data-end=\"4320\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eM.S. Rau presents an exceptional selection of blue diamonds and gemstones, including rare sapphires, Paraiba tourmalines and extraordinary colored diamonds. Each piece is chosen for its color, quality and rarity, offering jewelry that is as captivating as it is timeless.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","products":[{"product_id":"victorian-cameo-necklace","title":"Victorian Cameo Necklace","description":"Nine remarkably detailed cameos are showcased in this stunning Victorian-period necklace. The necklace is crafted of 18K yellow gold, and features two pendant drops that are interchangeable.\n\u003cbr\u003e\u003cbr\u003e\n15\" length","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":41238084878471,"sku":"30-6798","price":40500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/30-6798_1.png?v=1717921406"},{"product_id":"untreated-burma-sapphire-bib-necklace-6-07-carats","title":"Untreated Burma Sapphire Bib Necklace, 6.07 Carats","description":"A stunning 6.07-carat untreated Burma sapphire centers this exceptional Victorian-era bib necklace. The incredibly rare and monumentally sized jewel shares its perfect velvety blue color amidst crisscross links of gold dotted with lustrous white pearls. The sapphire is GIA-certified to be unheated and Burmese in origin. Set in 14K yellow gold. \u003cbr\u003e\u003cbr\u003e 16 1\/2\" length \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Cert_30-6801.pdf\" target=\"_blank\"\u003eDownload the Certification\u003c\/a\u003e","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43231051350151,"sku":"30-6801","price":90000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/30-6801_1.png?v=1758655496"},{"product_id":"art-deco-diamond-and-sapphire-convertible-pendant-brooch","title":"Art Deco Diamond and Sapphire Convertible Pendant Brooch","description":"Brilliant blue sapphires provide a touch of color to this platinum Art Deco creation that can easily convert from a pendant to a brooch. Its resplendent design, shimmering with approximately 8 carats of white diamonds, recalls the bygone era of luxury and style.","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":40499811614855,"sku":"30-8311","price":51000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/products\/30-8311_1.png?v=1702369448"},{"product_id":"cameo-of-chief-billy-bowlegs","title":"Cameo of Chief Billy Bowlegs","description":"One of history's most important American Indian leaders, Seminole Indian chief Billy Bowlegs (also known as Holata Micco, or \"Alligator Chief\"), is represented in this exceptionally rare cameo brooch. He is faithfully depicted in the distinctive clothing of the Seminole tribe, including a feather headdress and large hoop earring. Intricately carved from a stunning specimen of labradorite, the cameo shimmers with a lovely blue iridescence that brings this legendary figure to life. \n\u003cbr\u003e\u003cbr\u003e\nDescended from a line of Seminole Indian chiefs, Bowlegs was among the last and the most resilient Seminole War leaders. He rose to power during the Second Seminole War, when his successful use of guerrilla warfare frustrated the attempts of American military forces to remove American Indians from Florida. Bowlegs' warriors were counted among the most fearsome of the Seminole tribes - when hostilities ended in 1842, they were considered the most prominent survivors. \n\u003cbr\u003e\u003cbr\u003e\nPeace lasted for several years, until fighting broke out again in 1855 after a group of surveyors destroyed plants and property in Seminole territory. Bowlegs responded by again engaging in guerrilla warfare, beginning the Third Seminole War. After several years of attacks, Bowlegs and his tribe agreed to relocate to Indian Territory in Arkansas in 1858.\n\u003cbr\u003e\u003cbr\u003e\nTales of Bowlegs' resistance remain legendary in Florida and beyond. After his death in 1859, a number of Seminole warriors adopted the name Billy Bowlegs to honor the fallen chief, while a spring in Fort Myers, Florida also bears his name. This cameo represents the man's enduring legacy and historic importance.\n\u003cbr\u003e\u003cbr\u003e\nCirca 1855\n\u003cbr\u003e\u003cbr\u003e\n1 5\/8\" high x 1 5\/16\" wide","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43873549746311,"sku":"30-8581","price":34500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/30-8581_1.png?v=1770666693"},{"product_id":"unheated-kashmir-sapphire-ring-3-32-carats","title":"Unheated Kashmir Sapphire Ring, 3.32 Carats","description":"This remarkable octagonal step-cut Kashmir sapphire achieves the deep, velvety blue hue so prized in these gems. Weighing 3.32 carats, the stone's vibrant color is completely natural and perfectly complemented by two emerald-cut white diamonds totaling 1.58 carats. The sapphire is certified by the Gemological Institute of America (GIA), American Gemological Laboratories (AGL) and Gübelin Gem Lab to be of Kashmir origin and untreated, while the diamonds are both certified by the GIA to be of E and F color and VVS1 and VS1 clarity, respectively. Set in platinum. \u003cbr\u003e\u003cbr\u003e Sapphires hailing from the Kashmir region are regarded as the very best of this classic family of gemstones, and they are ranked as one of the most desirable gems alongside the rarest colored diamonds and Burma rubies. Revered for their superior cornflower blue hue and distinctive “blue velvet” texture, these coveted gems are a rarity on the market due both to their relative scarcity and popularity. \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Cert_31-2396.pdf\" target=\"_blank\"\u003eDownload the Certifications\u003c\/a\u003e \n","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43231053774983,"sku":"31-2396","price":388500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-2396_1.png?v=1758655523"},{"product_id":"ceylon-sapphire-ring-19-71-carats","title":"Ceylon Sapphire Ring, 19.71 Carats","description":"Centering this ring is a breathtaking Ceylon sapphire, one of the rarest and most desirable of all sapphires. Weighing 19.71 carats and certified by the American Gemological Laboratories to be of Ceylon (Sri Lanka) origin, this monumental jewel displays the rich royal blue hue for which these stones are so coveted. This oval-shaped, modified mixed-cut sapphire is joined in its platinum setting by two kite-shaped white diamonds weighing 2.01 total carats. \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Cert_31-3485.pdf\" target=\"_blank\"\u003eDownload the Certification\u003c\/a\u003e \n","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43231055741063,"sku":"31-3485","price":228500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-3485_1_1239a180-af51-4bac-95ef-5129e687667e.png?v=1758655755"},{"product_id":"art-deco-sapphire-and-diamond-bracelet","title":"Art Deco Sapphire and Diamond Bracelet","description":"This spectacular sapphire bracelet embodies the sleek and stylish spirit of Art Deco design. The bracelet is embedded with a bold geometric design of white diamonds totaling approximately 16.00 carats, while rich, royal blue sapphires totaling approximately 6.50 carats add a hint of drama. Both chic and timeless, this piece evokes the effortless luxury of the Jazz Age with its platinum setting of articulated links. \u003cbr\u003e\u003cbr\u003e 7\" length","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43873835090055,"sku":"31-3840","price":68000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-3840_1_36f7f524-1b2f-49eb-9ddb-a37091061f6c.png?v=1772350374"},{"product_id":"tanzanite-convertible-pendant-ring-22-43-carats","title":"Tanzanite Convertible Pendant Ring, 22.43 Carats","description":"The monumental 22.43-carat cushion-cut tanzanite in this convertible ring displays the incredible deep violetish-blue hue for which tanzanites are so desired. The rare gemstone has been certified by the American Gemological Institute (AGL) to be untreated, meaning it has not undergone any clarity or thermal treatment to enhance its color. Found in just one place on earth, the African country of Tanzania for which it is named, the tanzanite is relatively new to the jewel market. While many display a light, violet hue, those that possess a deep and highly saturated coloration such as this are eagerly sought after. Its intense violetish-blue is perfectly complemented by 2.80 total carats of diamonds in its 18K white gold setting. \u003cbr\u003e\u003cbr\u003e Apart from its spectacular stones, this ring is made all the more desirable thanks to its versatile, convertible setting. The setting is specially crafted so that the center may be removed and worn as a pendant. An eye-hook clasp on the reverse allows the pendant to be easily suspended from a chain and worn around the neck. \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Cert_31-3524.pdf\" target=\"_blank\"\u003eDownload the Certification\u003c\/a\u003e","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43873800585351,"sku":"31-3524","price":98500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-3524_1_ec2994e2-fb1a-45f9-99ce-ec56765444f2.png?v=1770672587"},{"product_id":"art-deco-yogo-sapphire-ring","title":"Art Deco Yogo Sapphire Ring","description":"This Art Deco-period ring features not one, but two exceptionally rare Yogo sapphires. First discovered in the late 19th century in the Yogo Gulch in Montana, Yogo sapphires are considered among the world’s finest prized gemstones. These examples total approximately 0.75 carat and are joined by 1.10 total carats of white diamonds in their classic platinum Art Deco setting.","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":40500485521543,"sku":"31-4202","price":22500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/products\/31-4202_1_e77ba2c9-229d-4bc2-b6da-0344114bd694.png?v=1710146007"},{"product_id":"oval-sapphire-earrings-5-00-carats","title":"Oval Sapphire Earrings, 5.00 Carats","description":"A pair of perfectly matched sapphires with a total approximate weight of 5.00 carats center these elegant earrings. The royal blue stones are encircled by approximately 0.65 carat of sparkling white diamonds in their stylishly modern 18K white gold settings.","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43707735670919,"sku":"31-4403","price":30000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-4403_1_2897638a-55f7-4dd2-86dc-ad55c46ae436.png?v=1769786942"},{"product_id":"adler-paraiba-tourmaline-and-sapphire-ring","title":"Adler Paraiba Tourmaline and Sapphire Ring","description":"This stylish ring by celebrated Geneva-based jewelry maison Adler makes a bold statement with its graphic arrangement of aqua blue Paraiba tourmalines and deep blue sapphires. The Paraibas and sapphires each total approximately 2.50 carats, and the contrasting gems combine with white accent diamonds to resemble the waves of the ocean. Set in 18K white gold.","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":41832787771527,"sku":"31-4421","price":30000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-4421_1.png?v=1730880826"},{"product_id":"emerald-cut-aquamarine-ring-43-37-carats","title":"Emerald-Cut Aquamarine Ring, 43.37 Carats","description":"With the stunning blue hue of a clear tropical ocean, the incredible 43.37-carat emerald-cut aquamarine at the center of this ring is absolutely captivating. This specimen possesses the deeply saturated Santa Maria blue hue that is found only in the rarest variety of these stones. Named in honor of Santa Maria de Itabira, the mine in Brazil where they were first discovered, aquamarines that possess this \"deep sea\" color are highly sought after. This gem is joined by 1.21 carats of marquise- and round-cut white diamonds in its platinum setting. \u003cbr\u003e\u003cbr\u003e With a name derived from the Latin for \"seawater,\" it's no surprise that the calming color of aquamarine is often compared to a clear blue ocean. Ancient peoples believed anyone who wore the jewel, especially mariners, would be protected from harm, and it was even thought to help maintain marital bliss.","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":44439380000903,"sku":"31-4044","price":124500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-4044_1_3b015e0c-fcd3-4dfd-a1e6-ad1cb6d0078f.png?v=1775856132"},{"product_id":"aquamarine-and-diamond-necklace-and-earring-suite","title":"Aquamarine and Diamond Necklace and Earring Suite","description":"Stunning aquamarines weighing an impressive 314.00 carats are interspersed with diamonds totaling approximately 6.86 carats in this elegant necklace and earring suite. With a name derived from the Latin for \"seawater,\" it's unsurprising that the calming color of aquamarine is often compared to a clear blue ocean. Ancient peoples believed anyone who wore the jewel, especially mariners, would be protected from harm, and it was even thought to help maintain marital bliss. These beautiful gems are set in luxurious platinum.","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":41789955604615,"sku":"31-4980","price":56700.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-4980_1_a9a7dcb4-96e5-417f-8d0b-dfec280d7e47.png?v=1730880960"},{"product_id":"tanzanite-pendant-necklace-88-00-carats","title":"Tanzanite Pendant Necklace, 88.00 Carats","description":"A magnificent blue tanzanite weighing an astonishing 88.00 carats and displaying its prized, highly-saturated violetish-blue hue is the focus of this captivating pendant necklace. Found in just one place on earth, the African country of Tanzania for which it is named, the tanzanite is relatively new to the jewel market. Its intense color is perfectly complemented by a halo of approximately 1.50 total carats of round, marquis and pear-shaped diamonds in its 18K white gold setting. \u003cbr\u003e\u003cbr\u003e When discovered in the hills of Mount Kilimanjaro 1967, tanzanites were first thought to be an alternative type of sapphire. Upon further investigation, however, the stone’s properties were seen to be more complex and unique. The stone was christened with the name “Tanzanite” by Henry B. Platt, president and chairman of Tiffany \u0026amp; Co., at the 1968 World's Fair, where its vibrant blue-violet color dazzled visitors. While many tanzanites display a light, violet hue, examples such as this boasting a strong, pure blue hue are considered the most desirable and valuable. \u003cbr\u003e\u003cbr\u003e Pendant: 2\" length\u003cbr\u003e Chain: 17\" length \n","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":44552949956743,"sku":"31-5141","price":128500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-5141_1_b72b7373-fec7-422d-b9d8-ff8deb716f4e.png?v=1777569810"},{"product_id":"aquamarine-pendant-necklace-55-03-carats","title":"Aquamarine Pendant Necklace, 55.03 Carats","description":"The incredible aquamarine draped from this necklace captures attention with a vibrant aqua hue that rivals that of the world's oceans. Weighing approximately 55.03 carats, the gem's graceful pear shape gives the impression of a drop of water about to drip from its 18K white setting, accented with 7.59 carats of diamonds. The gemstone possesses the deeply saturated \u003cem\u003eSanta Maria\u003c\/em\u003e blue hue found only in the rarest variety of these stones. Named in honor of Santa Maria de Itabira, the mine in Brazil where they were first discovered, aquamarines that possess this \"deep sea\" color are highly sought after. \u003cbr\u003e\u003cbr\u003e Ancient peoples believed anyone who wore aquamarines, especially mariners, would be protected from harm, and it was even thought to help maintain marital bliss. The finest specimens of aquamarine perfectly combine peerless clarity with the prized \"ocean blue\" color presented in this stunning example. \u003cbr\u003e\u003cbr\u003e Pendant: 3 1\/2\" length\u003cbr\u003e Chain: 23\" length","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43672920883335,"sku":"31-5074","price":248500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-5074_1_95d91e48-4ff0-47ee-a7f4-120dd8571463.png?v=1767200960"},{"product_id":"sapphire-ring-2-93-carats","title":"Sapphire Ring, 2.93 Carats","description":"Displaying a beautiful pale blue hue, the 2.93-carat brilliant-cut sapphire at the center of this ring is certified by the Gemological Institute of America as completely untreated. The stone is set in a bold criss-cross design encrusted with 0.40 carat of white diamonds. Elegant and unique, this ring makes a bod impression. Set in 14K white gold. \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Cert_31-5387.pdf\" target=\"_blank\"\u003eDownload the Certification\u003c\/a\u003e","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43874034057351,"sku":"31-5387","price":12850.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-5387_1.png?v=1772351801"},{"product_id":"sapphire-ring-1-07-carats","title":"Sapphire Ring, 1.07 Carats","description":"A rich blue sapphire weighing 1.07 carats is set in this ring. The pear-shaped gemstone is encircled by white diamonds totaling 0.36 carat in an 18K white gold setting.","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43874030715015,"sku":"31-5383","price":9850.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-5383_1_f944566b-9738-4103-9796-1e39b42bef42.png?v=1772351781"},{"product_id":"brilliant-cut-sapphire-ring-2-21-carats","title":"Brilliant-Cut Sapphire Ring, 2.21 Carats","description":"This exceptional ring features a round brilliant cut sapphire weighing 2.21 carats. The gem is enhanced by sparkling diamonds totaling approximately 0.38 carat. Set in intricately engraved platinum. \n","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43874076590215,"sku":"31-5530","price":10500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-5530_1.png?v=1772352079"},{"product_id":"untreated-tanzanite-pendant-104-39-carats","title":"Untreated Tanzanite Pendant, 104.39 Carats","description":"A monumental 104.39-carat cushion-cut tanzanite is the star of this eye-catching pendant. The gem has been certified by the American Gemological Laboratories (AGL) as being untreated, meaning that no clarity or thermal enhancements have been used to achieve its vivid purplish blue color. Virtually all tanzanite stones are heat treated, so a perfect untreated stone such as this one is an extraordinary find. As its certification states, \"The unusual combination of size, provenance and quality factors present in this material contributes favorably to its rarity and desirability.\" \u003cbr\u003e\u003cbr\u003e The tanzanite is found in only one location worldwide, the East African state of Tanzania, and remains one of the most sought-after stones on the market. Discovered in 1962 in the shadow of Mount Kilimanjaro, this new gem drew the attention of Tiffany \u0026amp; Co., which gave it the name “tanzanite.” It has maintained a steady popularity ever since. \u003cbr\u003e\u003cbr\u003e This example is set in platinum and 18K gold with diamond accents totaling approximately 2.98 carats. \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Cert_31-5440.pdf\" target=\"_blank\"\u003eDownload the Certification\u003c\/a\u003e \n","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43874048442503,"sku":"31-5440","price":188500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-5440_1.png?v=1772351861"},{"product_id":"tanzanite-earrings-17-92-carats","title":"Tanzanite Earrings, 17.92 Carats","description":"Possessing an entrancing deep blue hue, two extraordinary tanzanites are elegantly displayed within these classic earrings. The cushion-cut jewels are perfectly matched in cut, color, and size, with the pair totaling 17.92 carats. White diamonds totaling 4.69 carats surround each stone, adding sparkle to this stylish pair. Set in 18K white gold. \u003cbr\u003e\u003cbr\u003e Tanzanite is one of the rarest gemstones in the world, found only in the African country of Tanzania for which it is named. Tanzanite's natural pleochroism - the ability for a gem to show more than one color - gives the jewel its mesmerizing purplish-blue color. \u003cbr\u003e\u003cbr\u003e 3\/4\" diameter","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":44263397458055,"sku":"31-5576","price":48500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-5576_1_ead3349f-7853-463d-81f1-8991b4fd8824.png?v=1774966484"},{"product_id":"mens-star-sapphire-ring-15-30-carats","title":"Men's Star Sapphire Ring, 15.30 Carats","description":"A six-rayed \"star\" shines brightly at the center of this 15.30-carat cabochon star sapphire. The blue gemstone is among the most unique variety of sapphires thanks to its asterism, an optical phenomenon that produces its eponymous star. Microscopic needle-like mineral inclusions are found in the stone, and it is these that perfectly align to cause the appearance of a star when the gem is viewed under a concentrated light source. This rare gem is set in a bold platinum setting with diamond accents totaling approximately 0.10 carat.","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":41790101127303,"sku":"31-5697","price":64500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-5697_1.png?v=1726233167"},{"product_id":"ceylon-sapphire-ring-9-02-carats","title":"Ceylon Sapphire Ring, 9.02 Carats","description":"This eye-catching ring is set with a dazzling 9.02-carat Ceylon sapphire that is counted among the best of its kind. With its stunning beauty and monumental size, this oval mixed-cut gem displays the vivid blue hue that makes Ceylon sapphires so coveted. The stone is joined in its platinum setting by diamonds totaling 1.43 carats. \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Cert_31-5722.pdf\" target=\"_blank\"\u003eDownload the Certification\u003c\/a\u003e","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43647394021511,"sku":"31-5722","price":135000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-5722_1.png?v=1767200055"},{"product_id":"blue-and-yellow-sapphire-earrings-8-00-carats","title":"Blue and Yellow Sapphire Earrings, 8.00 Carats","description":"Bold and elegant, a 4.00-carat of deep blue sapphire and a 4.00-carat yellow sapphire are set into these multi-color earrings. A highly unique 18K yellow gold setting, with 0.35 carat of diamond accents, highlights the sapphires' remarkable color. \u003cbr\u003e\u003cbr\u003e 3\/4\" length","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":40500693106823,"sku":"31-5835","price":28500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/products\/31-5835_1_fa3bb697-6272-479a-bf41-95ca509bf426.png?v=1720512931"},{"product_id":"yogo-sapphire-cross-pendant-5-50-carats","title":"Yogo Sapphire Cross Pendant, 5.50 Carats","description":"Rare Montana sapphires display a stunning blue hue in this classic cross pendant. The round brilliant-cut gems hail from the famed Yogo Gulch mines of Montana and are certified by the Gemological Institute of America to be unheated. Totaling approximately 5.50 carats, the sapphires are set in 14K gold. \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Cert_31-5841.pdf\" target=\"_blank\"\u003eDownload the Certification\u003c\/a\u003e","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":44252783771783,"sku":"31-5841","price":24500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-5841_1_e83267ab-3311-4c51-b43d-bfae65490887.png?v=1774967018"},{"product_id":"yogo-montana-sapphire-bar-pin-1-00-carat","title":"Yogo Montana Sapphire Bar Pin, 1.00 Carat","description":"Three rare Yogo Montana emerald-cut sapphires totaling approximately 1.00 carat are featured in this antique bar pin. Displaying a clear cornflower blue hue, sapphires from this region are among the most unique and coveted of all American gemstones. The rare sapphires are set in platinum and 18K gold. \u003cbr\u003e\u003cbr\u003e 3 1\/8\" length","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":41790099193991,"sku":"31-5640","price":6000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-5640_1.png?v=1728288679"},{"product_id":"madagascar-sapphire-ring-7-47-carats","title":"Madagascar Sapphire Ring, 7.47 Carats","description":"A visually striking cushion-shaped, brilliant-cut sapphire displays a magnificent royal blue hue. Weighing 7.47 carats, this rare gemstone is certified by the Gemological Institute of America as being Madagascan in origin, and is joined by two near colorless diamonds totaling 1.53 carats. Set in platinum. \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Cert_31-5919.pdf\" target=\"_blank\"\u003eDownload the Certification\u003c\/a\u003e","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43231092342919,"sku":"31-5919","price":96000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-5919_1_ac98497d-7f5c-4357-a61b-581b0dc0933a.png?v=1758655981"},{"product_id":"ceylon-sapphire-ring-7-10-carats","title":"Ceylon Sapphire Ring, 7.10 Carats","description":"A brilliant-cut sapphire displays a deep royal blue hue in this elegant ring. The 7.10-carat sapphire at the heart of this classic ring is certified by the Gemological Institute of America (GIA) as being Ceylon in origin. Displaying the rich blue hue for which Ceylon sapphires are coveted, the stone is flanked by approximately 1.80 carat of white diamonds and set in platinum. \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Cert_31-5607.pdf\" target=\"_blank\"\u003eDownload the Certification\u003c\/a\u003e","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":44505451364487,"sku":"31-5607","price":114500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-5607_1_8f606b70-c019-41cf-9272-a73f2de15bbe.png?v=1777556125"},{"product_id":"tanzanite-ring-10-79-carats","title":"Tanzanite Ring, 10.79 Carats","description":"Exuding the classic elegance of the Art Deco style, this unique ring features a sizable tanzanite gemstone totaling 10.79 carats. While many display a light, violet hue, those that possess a deep and highly saturated coloration, such as this, are eagerly sought after. Radiating diamonds totaling 3.82 carats accent the central gem, and outlining the outer edge of the geometric design, sapphires totaling 2.64 carats display their desirable royal blue hue. \u003cbr\u003e\u003cbr\u003e Tanzanite is one of the rarest gemstones in the world, found only in the African country of Tanzania for which it is named. Tanzanite's natural pleochroism, the ability for a gem to show more than one color, gives the jewel its mesmerizing purplish-blue color.","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43924514570375,"sku":"31-6054","price":42850.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-6054_1.png?v=1774943090"},{"product_id":"tanzanite-ring-42-32-carats","title":"Tanzanite Ring, 42.32 Carats","description":"A magnificent blue tanzanite weighing 42.32 carats is the star of this stunning ring. Displaying the deep violetish-blue hue for which the best tanzanites are so desired, this striking gemstone is beautifully accented by white diamonds totaling approximately 3.16 carats. Set in 18K white gold.  \u003cbr\u003e\u003cbr\u003e Found in just one place on earth, the African country of Tanzania for which it is named, the tanzanite was first discovered in 1967 and quickly became popular on the market. While many display a light, violet hue, the most highly prized examples of these stones weigh over 5.00 carats and display the a deep, highly saturated hue like the stone set in this ring. ","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":40500711751815,"sku":"31-6236","price":75000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/products\/31-6236_1.png?v=1720513098"},{"product_id":"tanzanite-necklace-65-67-carats","title":"Tanzanite Necklace, 65.67 Carats","description":"Five deep blue tanzanites totaling an impressive 65.67 carats form the elegant drop pendant of this necklace. The royal blue gemstones are accented by glittering white diamonds totaling approximately 1.20 carats. Set in platinum. \u003cbr\u003e\u003cbr\u003e 17\" length","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":41732091019399,"sku":"31-6483","price":96000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-6483_1_5985fd8b-e5c2-4cf6-ad0e-938399e40ed0.png?v=1728289092"},{"product_id":"david-webb-sapphire-earrings-10-51-carats","title":"David Webb Sapphire Earrings, 10.51 Carats","description":"These exquisite earrings by David Webb perfectly exemplify the beauty and innovation for which the jewelry designer is so renowned. These earrings feature brilliant blue sapphires totaling 10.51 carats that are encircled by shimmering white agate and 5.82 carats of stunning white diamonds. The interplay of dazzling diamonds, soft agate, and deep blue create a wonder of mystery and delight for the eye. \u003cbr\u003e\u003cbr\u003e Beloved by celebrities and regal patrons, Madison Avenue-based designer David Webb was known for mixing gemstones with cutting-edge design. These brilliant earrings perfectly illustrates his credo to \"create jewelry like sculpture…conceiving and modeling it like a work of art.\" \u003cbr\u003e\u003cbr\u003e Set in 18K gold and platinum \u003cbr\u003e\u003cbr\u003e 1\" length","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":41238971711623,"sku":"31-6529","price":123000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-6529_1_a49bc9c7-9dee-4562-aa4d-599918f6adbe.png?v=1715330693"},{"product_id":"david-webb-sapphire-and-diamond-ring","title":"David Webb Sapphire and Diamond Ring","description":"Unique and beautiful, this sapphire, diamond and chalcedony ring embodies designer David Webb's creative and daring aesthetic. A dazzling 8.34-carat deep blue sapphire centers the design and is framed by diamonds totaling 2.65 alternated with petal-like chalcedony stones. Chalcedony is a unique and rare gem in the quartz family known for its lavender hue, waxy luster and opacity. \u003cbr\u003e\u003cbr\u003e David Webb was known for his innovative designs and celebrity clientele. He often worked with  unconventional materials such as carved wood, rock crystal, jade and coral. This ring's interesting combination of gems reflects Webb’s signature style. \u003cbr\u003e\u003cbr\u003e Set in platinum and 18K gold.","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":41790154539143,"sku":"31-6527","price":99000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-6527_1_c2de9c24-c176-44aa-9543-2ce79ce89da9.png?v=1730881855"},{"product_id":"fancy-deep-blue-diamond-ring-1-50-carats","title":"Fancy Deep Blue Diamond Ring, 1.50 Carats","description":"An exceptional marvel of nature reminiscent of the Hope Diamond, this beautiful and highly rare fancy deep blue diamond is certified by the Gemological Institute of America as Internally Flawless. Fancy colored diamonds are extremely rare natural specimens, and the different colors are the result of the presence of various elements during the diamond's formation. Blue, which connotes the presence of Boron, is among the rarest of these coveted diamonds. Colored diamonds over one carat are almost never found, and often they exhibit color zoning. At 1.50 carats, this fancy deep blue diamond with perfectly even color distribution is simply unparalleled. Like the famed Hope Diamond, this gem exhibits red phosphorescence, a rare optical phenomenon caused by boron and nitrogen interacting within the diamond’s structure, producing a striking red glow under UV light. \u003cbr\u003e\u003cbr\u003e The beauty of this oval brilliant-cut deep blue diamond is multiplied by the two fancy vivid purplish pink diamonds that flank either side of the central diamond. Totaling 0.59 carats, the quality of these pear-shaped diamonds is certified by the GIA. While one fancy colored diamond is a coveted rarity, setting three in a single ring is truly exceptional. Set in platinum and 18K rose gold. \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Report_31-6682.pdf\" target=\"_blank\"\u003eDownload the Reports\u003c\/a\u003e \n","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43566328709255,"sku":"31-6682","price":1785000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-6682_1_f5b95f3b-3a26-444d-ab36-30f4241241eb.png?v=1765116564"},{"product_id":"oval-sapphire-ring-6-77-carats","title":"Oval Sapphire Ring, 6.77 Carats","description":"Displaying a coveted royal blue hue, the mixed-cut, oval-shaped sapphire at the center of this ring weighs an impressive 6.77 carats. Certified by the American Gemological Laboratories as originating in Madagascar, the monumental and vibrant blue gemstone is accented by glittering white diamonds totaling 0.99 carats. Set in platinum. \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Cert_31-6703.pdf\" target=\"_blank\"\u003eDownload the Certification\u003c\/a\u003e","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43313043046535,"sku":"31-6703","price":97500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-6703_1.png?v=1760210689"},{"product_id":"ancient-roman-medusa-intaglio-earrings","title":"Ancient Roman Medusa Intaglio Earrings","description":"Displaying two carved Medusa gemstones over 1800 years old, these dangle earrings are exceptional examples of the ancient Roman intaglio technique. Paired with a 19th-century gold setting and accented by two additional Victorian cameos, these one-of-a-kind, museum-quality intaglio earrings remain a prized discovery, as coveted today as it would have been at their creation. \u003cbr\u003e\u003cbr\u003e The art of intaglio, also known as gem carving, dates to as early as the 14th century B.C.E. and was practiced by ancient civilizations in Mesopotamia, Assyria, Phoenicia, and later in Greece and Rome. In fact, the gemstone intaglio was one of the most popular jewelry designs in ancient Rome, as Roman men of social standing commonly wore intaglio rings in order to mark wax seals. \u003cbr\u003e\u003cbr\u003e Set in 22K gold \u003cbr\u003e\u003cbr\u003e 2“ length","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":44568994152583,"sku":"31-6616","price":34500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-6616_1.png?v=1778116888"},{"product_id":"untreated-paraiba-tourmaline-ring-23-24-carats","title":"Untreated Paraiba Tourmaline Ring, 23.24 Carats","description":"A monumental 23.24-carat Paraiba tourmaline displays a remarkable intensity of color at the center of this ring. Exhibiting a pure blue hue, the gem is certified by the American Gemological Laboratories as being entirely natural and Mozambique in origin. Since the majority of these stones have been heated for clarity enhancement, to find an untreated stone of this size, clarity and saturation is exceptionally rare. Set in platinum, the oval mixed-cut gemstone is enhanced by round and marquis-cut diamonds totaling 2.84 carats. \u003cbr\u003e\u003cbr\u003e Only first discovered in 1989, the Paraiba tourmaline is one of the world’s rarest and most vibrant gemstones, and they have only been found in the copper-rich mines of Brazil, Nigeria and Mozambique. It is thanks to their rare chemical composition that these gems owe their spectacular coloring and brilliant glow that appears to light the stone from within. \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Cert_31-6783.pdf\" target=\"_blank\"\u003eDownload the Certification\u003c\/a\u003e","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43672947097735,"sku":"31-6783","price":648500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-6783_1_96a169d6-d2d4-41c0-ad20-53a9b4d86b71.png?v=1767197300"},{"product_id":"ceylon-sapphire-heart-earrings-6-11-carats","title":"Ceylon Sapphire Heart Earrings, 6.11 Carats","description":"Two impressive heart-shaped Ceylon sapphires totaling 6.11 carats are set in these glamorous earrings. Displaying the vivid \"royal blue\" hue for which the gems are so coveted, the sapphires are certified by the GemResearch SwissLab as hailing from the mines of Ceylon, modern-day Sri Lanka. Twenty-four glittering white diamonds totaling 2.18 carats frame the rare stones in their platinum settings. \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Cert_31-7377.pdf\" target=\"_blank\"\u003eDownload the Certification\u003c\/a\u003e","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":44263411515527,"sku":"31-7377","price":138500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-7377_1.png?v=1774966254"},{"product_id":"boucheron-untreated-burma-sapphire-ring-7-11-carats","title":"Boucheron Untreated Burma Sapphire Ring, 7.11 Carats","description":"An exceptional 7.11-carat royal blue sapphire forms the focal point of this ring. The gemstone is certified by Gübelin as hailing from Burma and being completely untreated, with no gemological evidence of heat treatments to enhance the stone's hue. The brilliant-cut sapphire is flanked by approximately 5.80 carats of white diamonds and is set in a classic 18K yellow gold setting. \u003cbr\u003e\u003cbr\u003e For centuries, Burma has been associated with the world's finest sapphires and its history is rich with intrigue. Burma was a bountiful source of both sapphires and rubies for more than 1,000 years, though the best stones were never allowed to leave the kingdom. Until the middle of the 19th century, the Burmese king commanded that any and all gemstones weighing more than 5.00 carats would become the possession of the kingdom of Burma. Miners, anxious to sell their gems, broke many magnificent sapphires into pieces smaller than 5.00 carats so as to bypass the king's law. Sapphires such as this, weighing over 5.00 carats, are exceptionally rare and precious. In 1962, the borders of Burma were closed, further limiting the mining of the gems. The opportunity to acquire a Burma stone of such substantial size and perfect color, is indeed, a rarity. \u003cbr\u003e\u003cbr\u003e One of the most revered names in jewelry, Boucheron has attracted the most affluent clientele, counting royalty and celebrities among its list of devotees since 1858. This ring represents the style and artistry for which the firm is renowned across the globe. \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Cert_31-7409.pdf\" target=\"_blank\"\u003eDownload the Certifications and Appendix Letter\u003c\/a\u003e","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43874798207111,"sku":"31-7409","price":198500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-7409_1.png?v=1772359248"},{"product_id":"david-webb-sapphire-ruby-and-diamond-ring","title":"David Webb Sapphire, Ruby and Diamond Ring","description":"Striking and original, this ring by famed American designer David Webb features a 9.41-carat royal blue sapphire encircled by 1.80 carats of pavé diamonds. A multitude of rubies are artfully arranged and bezel-set into the ring's unique dome filigree. Set in 18K gold and platinum, this ring dazzles on the finger. \u003cbr\u003e\u003cbr\u003e Once described as \"today's Fabergé\" by the Duchess of Windsor, jet-setting Madison Avenue-based designer David Webb was known for his innovative designs and celebrity clientele, which included the likes of the Duchess, Jackie Kennedy and Elizabeth Taylor.","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":41735585595527,"sku":"31-7485","price":130500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-7485_1_0676576a-94aa-4649-a4f3-2b45fe300557.png?v=1730881774"},{"product_id":"david-webb-sapphire-cabochon-ring-17-20-carats","title":"David Webb Sapphire Cabochon Ring, 17.20 Carats","description":"Highly unique and a stunning display of David Webb's creative artistry, this original ring centers a delightful 17.20-carat blue cabochon sapphire. The striking gemstone is set in atop a remarkable sparkling crystal, creating a dazzling illusory effect. The beautiful cabochon is accented by round white diamonds totaling approximately 0.86 carat. The wonderfully unique design captivates the eye. Crafted from 18K white gold and platinum. \u003cbr\u003e\u003cbr\u003e Beloved by celebrities and regal patrons, Madison Avenue-based designer David Webb was known for mixing gemstones with cutting-edge design. This unique and beautiful ring perfectly illustrates his credo to \"create jewelry like sculpture…conceiving and modeling it like a work of art.\"","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":41245610672263,"sku":"31-7498","price":93000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-7498_1.png?v=1712736464"},{"product_id":"invisible-set-sapphire-necklace-100-00-carats","title":"Invisible Set Sapphire Necklace, 100.00 Carats","description":"Combining over 100.00 carats of vividly-hued blue sapphires, this breathtaking necklace showcases the coveted invisible setting. Also known as the mystery setting, this innovative design style was patented in 1933 and highlights the natural beauty of precious stones. Its secret lies in its gold rails, into which stones—expressly and meticulously cut—are individually inserted. This mesmerizing technique makes the metal mechanics of a jewelry piece entirely invisible. Exquisite colored gemstones are each placed side-by-side in these settings, creating dazzling and unbroken swathes of color free from flashes of metal. \u003cbr\u003e\u003cbr\u003e Aided by this ingenious design, this beautiful bevy of deep blue sapphires creates a striking, saturated effect. The unique design emanates with elegance and refinement. The stunning sapphires are accented by a border of diamonds and the necklace is punctuated by dramatic drop, created by invisibly set diamonds. The sparkling white diamonds total approximately 4.00 carats. Set with 18K white gold. \u003cbr\u003e\u003cbr\u003e 17\" length","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43673043239047,"sku":"31-7531","price":285000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-7531_1_f0a0aea0-120b-4bbf-95e1-7bd7504d0ce5.png?v=1780144174"},{"product_id":"brazilian-paraiba-ring-3-73-carats","title":"Brazilian Paraiba Ring, 3.73 Carats","description":"A monumental marvel, this breathtaking ring features the elusive and rare Brazilian Paraiba. The exquisite 3.73-carat gemstone displays the glowing greenish-blue hue for which this variety of tourmalines are renowned. The gemstone's unique triangular cut and expertly cut facets emphasize the brilliance and sparkling beauty of this vibrant blue stone. The Paraiba is accompanied by a report from the Gemological Institute of America, certifying its coveted Brazil origin. The blue jewel is encircled by a halo of pink diamonds with white diamonds accenting the band, together totaling 0.90 carat and set in 18K rose and white gold. A coveted rarity, this gem is in a class of its own. \u003cbr\u003e\u003cbr\u003e In 1981, the gem miner Heitor Dimas Barbosa, commonly known among the local villagers as “Heitor the Fool,” began tunneling in the hill behind São José de Batalha, Paraíba, Brazil. Barbosa was determined that his hunch would lead to finding a new gemstone. Despite having no electricity or dependable water, Barbosa persevered with faith for over six years through the rugged and arid landscape on his quest. In 1987, his efforts were rewarded by the discovery of the first Brazilian Paraiba, a stunning gem that was unlike any stone ever found. Soon after their discovery, production began to dwindle; over 90% of the tourmaline production occurred between 1989 and 1992. It is thanks to their rare chemical composition that these gems owe their spectacular coloring and neon-bright glow that appears to light the stone from within. \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Cert_31-7440.pdf\" target=\"_blank\"\u003eDownload the Certification\u003c\/a\u003e","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":44263413678215,"sku":"31-7440","price":569750.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-7440_1_560b6030-23a4-4d93-8814-aa2423e117a0.png?v=1780144164"},{"product_id":"untreated-teal-sapphire-ring-4-03-carats","title":"Untreated Teal Sapphire Ring, 4.03 Carats","description":"Displaying a captivating teal blue hue, the 4.03-carat brilliant-cut sapphire at the center of this ring dazzles on the finger. Certified by Bellerophon Gemlab, the sapphire shows no gemological evidence of heat treatments, meaning its bright greenish-blue coloring is entirely natural. The gem is encircled by concentric circles of glittering pear and round-shaped white diamonds totaling 2.97 carats. The jewels are perfectly complemented by the ring's classic platinum setting. \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Cert_31-7432.pdf\" target=\"_blank\"\u003eDownload the Certification\u003c\/a\u003e","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43874812067975,"sku":"31-7432","price":58500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-7432_1_8e4ed0fd-f806-414b-bcc8-662c45a08e48.png?v=1772359368"},{"product_id":"untreated-brazilian-paraiba-asymmetrical-ring-1-38-carats","title":"Untreated Brazilian Paraiba Asymmetrical Ring, 1.38 Carats","description":"A striking 1.38-carat Paraiba tourmaline displays stunning brilliance and color in this asymmetrical ring. The triangular-shaped, brilliant-cut Paraiba is certified by the Gemological Institute of America as originating in Brazil and being completely untreated, meaning its striking blue color is entirely nature-made. Pink and white diamonds totaling 0.66 carat complement the vivid central gemstone, and the jewels are set in classic platinum. \u003cbr\u003e\u003cbr\u003e Only first discovered in 1989, the Paraiba tourmaline is one of the world’s rarest and most vibrant gemstones. Even rarer than diamonds, these extraordinary stones have only been found in the copper-rich mines of Brazil, Nigeria and Mozambique. It is thanks to their rare chemical composition that these gems owe their spectacular coloring and neon-bright glow that appears to light the stone from within. \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Cert_31-7439.pdf\" target=\"_blank\"\u003eDownload the GIA Certification\u003c\/a\u003e","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43874828320903,"sku":"31-7439","price":188500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-7439_1.png?v=1780413680"},{"product_id":"raymond-yard-unheated-paraiba-tourmaline-necklace-26-08-carats","title":"Raymond Yard Unheated Paraiba Tourmaline Necklace, 26.08 Carats","description":"This stunning multicolor Paraiba tourmaline necklace from beloved American jeweler Raymond Yard features 11 of the storied gems in varying hues of blue, purple and green. Totaling 26.08 carats, the Paraiba tourmalines are interspersed between a multitude of glittering white diamonds totaling 12.24 carats and set in classic platinum. \u003cbr\u003e\u003cbr\u003e First discovered in 1989, the Paraiba tourmaline is one of the world’s rarest and most vibrant gemstones. It is thanks to their rare chemical composition that these gems owe their spectacular coloring and internal glow that appears to light the stone from within. These extraordinary gems have only been found in the copper-rich mines of Brazil, Nigeria and Mozambique. \u003cbr\u003e\u003cbr\u003e 16 1\/2\" length","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":44263412990087,"sku":"31-7435","price":289750.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-7435_1_e859a22a-09d2-4d41-b077-f398b98fc3c1.png?v=1774966017"},{"product_id":"david-webb-untreated-ceylon-sapphire-ring-40-08-carats","title":"David Webb Untreated Ceylon Sapphire Ring, 40.08 Carats","description":"This exquisite couture ring by David Webb perfectly exemplifies the beauty and innovation for which the jewelry designer is so renowned. It features a royal blue sapphire, certified by the American Gemological Laboratories as originating in Ceylon and being completely untreated, with no evidence of heat applied to enhance its coveted hue. The sapphire is set into a highly architectural platinum and 18K gold setting encrusted with 8.74 carats of glittering white diamonds. The interplay of dazzling diamonds, lustrous gold and deep blue create a delight for the eye. \u003cbr\u003e\u003cbr\u003e Beloved by celebrities and regal patrons, Madison Avenue-based designer David Webb was known for mixing gemstones with cutting-edge design. This brilliant ring perfectly illustrates his credo to \"create jewelry like sculpture…conceiving and modeling it like a work of art.\" \u003cbr\u003e\u003cbr\u003e Set in 18K gold and platinum \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Cert_31-8183.pdf\" target=\"_blank\"\u003eDownload the Certification\u003c\/a\u003e","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43231111086215,"sku":"31-8183","price":900000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-8183_1_9ee1387e-640a-4c71-92af-03fb136a346b.png?v=1758655742"},{"product_id":"untreated-sapphire-ring-4-68-carats","title":"Untreated Sapphire Ring, 4.68 Carats","description":"Brilliant blue, red and white gemstones combine in this striking sapphire ring. The ring's dynamic design is centered by a stunning 4.68-carat cushion cut sapphire, certified by the American Gemological Laboratories and Swiss Gemmological Institute as Madagascan in origin and untreated, with no heat applied to enhance the jewel's coveted color. Vivid red emeralds totaling approximately 2.00 carats radiate from the center stone, accompanied by approximately 0.50 carat of white diamonds. Set in platinum. \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Cert_31-7542.pdf\" target=\"_blank\"\u003eDownload the Certification\u003c\/a\u003e","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43673044811911,"sku":"31-7542","price":88500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-7542_1_33aa87b4-3b27-4f86-9e93-c7c6383135df.png?v=1767194954"},{"product_id":"untreated-brazilian-paraiba-tourmaline-ring-13-24-carats","title":"Untreated Brazilian Paraiba Tourmaline Ring, 13.24 Carats","description":"A monumental 13.24-carat untreated Paraiba tourmaline makes a bold statement at the center of this ring. Exhibiting the trademark blue-green hue, the gem is certified by the American Gemological Laboratories as being entirely natural and Brazilian in origin. Since the majority of these stones have been heated for clarity enhancement, to find an untreated stone of this size is exceptionally rare. Set in platinum, the oval mixed-cut gemstone is enhanced by diamonds totaling 2.42 carats. \u003cbr\u003e\u003cbr\u003e Only first discovered in 1989, the Paraiba tourmaline is one of the world’s rarest and most vibrant gemstones, and they have only been found in the copper-rich mines of Brazil, Nigeria and Mozambique. It is thanks to their rare chemical composition that these gems owe their spectacular coloring and brilliant glow that appears to light the stone from within. \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Cert_31-7551.pdf\" target=\"_blank\"\u003eDownload the Certification\u003c\/a\u003e","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43673045008519,"sku":"31-7551","price":885000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-7551_1.png?v=1767194594"},{"product_id":"brazilian-paraiba-ring-1-01-carats","title":"Brazilian Paraiba Ring, 1.01 carats","description":"The focal point of this ring is a striking oval cut Paraiba tourmaline, showing a remarkable brilliance and depth of color, weighing approximately 1.01 carats. Exhibiting a luminous greenish-blue hue with excellent saturation, the rare jewel hails from the incomparable Brazilian mines. The stone is certified by the American Gemological Laboratories as Brazilian in origin with minor heat treatments. A halo of diamond accents of G-I color and SI1-SI2 clarity totaling 1.07 carats provides further elegance. Set in platinum. \u003cbr\u003e\u003cbr\u003e In 1981, the gem miner Heitor Dimas Barbosa, commonly known among the local villagers as “Heitor the Fool,” began tunneling in the hill behind São José de Batalha, Paraíba, Brazil. Barbosa was determined that his hunch would lead to finding a new gemstone. Despite having no electricity or dependable water, Barbosa persevered with faith for over six years through the rugged and arid landscape on his quest. In 1987, his efforts were rewarded by the discovery of the first Brazilian Paraiba, a stunning gem that was unlike any stone ever found. Soon after their discovery, production began to dwindle; over 90% of the tourmaline production occurred between 1989 and 1992. It is thanks to their rare chemical composition that these gems owe their spectacular coloring and neon-bright glow that appears to light the stone from within. \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Cert_31-8747.pdf\" target=\"_blank\"\u003eDownload the Certification\u003c\/a\u003e","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":44263414857863,"sku":"31-8747","price":54500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-8747_1.png?v=1774965504"},{"product_id":"graff-sapphire-and-diamond-earrings","title":"Graff Sapphire and Diamond Earrings","description":"These exquisite drop earrings by the renowned jeweler Graff showcase round cut sapphires with a total weight of 6.23 carats and round brilliant cut diamonds totaling 3.98 carats. Set in 18K white gold, their elegant design cascades in a glimmer of gemstones, making a bold yet sophisticated statement. \u003cbr\u003e\u003cbr\u003e The legendary House of Graff, founded in the United Kingdom in 1960 by Laurence Graff, is renowned for its exceptional quality and craftsmanship, becoming one of the world’s leading jewelers. The firm is known for handling some of the most famous and valuable gemstones in history. \u003cbr\u003e\u003cbr\u003e Signed “Graff” and numbered \u003cbr\u003e\u003cbr\u003e Includes original signed box \u003cbr\u003e\u003cbr\u003e Approximately 2 5\/8“ length","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":43875350544519,"sku":"31-9424","price":54500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/31-9424_1.png?v=1781306472"}],"url":"https:\/\/rauantiques.com\/collections\/blue-diamonds-gemstones.oembed?page=2","provider":"M.S. Rau","version":"1.0","type":"link"}