What to Look for in a Gem
Gemstones are both natural wonders and the result of human ingenuity. The natural processes of heat, pressure and mineral formation create unique gemstones. Variations in physical and chemical conditions during formation can result in subtle, yet significant, differences in a gem’s appearance and quality.The 4 Cs of Gemstones
Color- The most defining feature of a gemstone.
- Includes hue (pure color), saturation (intensity) and tone (lightness or darkness).
- The most prized gems exhibit a pure, vivid and evenly distributed color.
- Refers to a gem's purity and transparency.
- Inclusions, such as mineral particles, gas bubbles, or liquid deposits, can affect clarity and desirability.
- Determines how well a gem reflects light.
- Focuses on symmetry, proportions and facets rather than the shape itself.
- The quality of the cut enhances brilliance and sparkle.
- A standardized measure since 1914, with 1 carat equal to 200 milligrams.
- Larger gems are rarer and often more valuable, but quality can outweigh size.
Other Key Considerations
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Geographical Provenance:
Origin can significantly influence a gemstone's value. Notable examples include Kashmir sapphires, Colombian emeralds and Burmese rubies, which are revered for their unmatched quality and historical allure. -
Treatments:
Many gemstones undergo treatments to enhance their color and clarity. While some collectors prefer untreated gems, treatments are widely accepted and bring out the natural beauty of the stone.
Birthstone Guide
January – Garnet
Garnet and Diamond Earrings, 7.13 Carats. M.S. Rau. |
History
Garnet has been cherished since the Bronze Age, adorning ancient Egyptian pharaohs and signet rings of Roman officials. Its deep red hue was associated with life force, protection and vitality. Garnets have been found in burial sites, symbolizing a journey into the afterlife.
Why Buy?
Symbolism: A timeless emblem of strength and safety, garnet resonates with sentimental value.
Variety: Available in an array of colors beyond red, including green (tsavorite) and orange (spessartine).
Durability: Garnets score well on the Mohs scale, making them ideal for everyday wear.
February – Amethyst
Henry Dunay Amethyst and Diamond Earrings, 39.75 Carats. M.S. Rau. |
History
Amethysts were once as valued as diamonds. Ancient Greeks believed this purple quartz prevented intoxication, a belief that gave the gem its name, derived from the Greek word amethystos ("not drunk"). Amethysts adorned European royalty and clergy during the Middle Ages.
Why Buy?
Elegance: Its regal purple tones suit both modern and traditional designs.
Affordability: Offers luxury at a more accessible price point.
Versatility: Complements all metal types, making it perfect for various settings.
March – Aquamarine
Aquamarine and Diamond Ring, 20.45 Carats. M.S. Rau. |
History
Named after the Latin word for "sea water," aquamarine has long been associated with sailors and the ocean. Ancient Romans believed the stone could calm waves and ensure safe passage across the seas.
Why Buy?
Color: Its serene blue hues evoke tranquility.
Size Matters: Larger specimens show richer color, making it perfect for statement pieces.
Clarity: Known for its exceptional transparency, enhancing its aesthetic appeal.
April – Diamond
History
Diamonds have been revered for over 2,000 years, first discovered in India. Their unmatched hardness and brilliance made them symbols of power and invincibility, often adorning the crowns of kings and queens.
Why Buy?
Timeless Appeal: A classic choice for engagement rings and heirloom pieces.
Durability: As the hardest natural substance, diamonds withstand daily wear.
Symbolism: Represents love, strength, and eternity.
May – Emerald
Colombian Emerald Ring, 9.25 carats. M.S. Rau. |
History
Emeralds date back to ancient Egypt, where Cleopatra famously prized them. Spanish conquistadors discovered the legendary Muzo mines in Colombia, producing some of the finest emeralds to this day.
Why Buy?
Color: A vivid green unmatched by any other gemstone.
Cultural Significance: Associated with rebirth and prosperity.
Rarity: High-quality emeralds with minimal inclusions are exceptionally rare.
June – Pearl
Tahitian Pearl and Diamond Earrings. M.S. Rau. |
History
Before the advent of cultured pearls, natural pearls from the Persian Gulf were among the most coveted gems in history. They symbolized purity and wealth, often worn by royalty and the elite.
Why Buy?
Organic Beauty: Each pearl is unique, offering a distinctive appeal.
Versatility: Complements formal and casual looks alike.
Heritage: Cultured pearls maintain the allure of their natural counterparts.
July – Ruby
Oval Burma Ruby Earrings, 8.58 Carats. M.S. Rau. |
History
Rubies have symbolized passion and power since antiquity. They were particularly revered in India, where they were considered the "king of precious stones." The Mogok Valley in Myanmar is a renowned source of the finest rubies.
Why Buy?
Color: Vivid reds, especially "pigeon’s blood," are unparalleled.
Cultural Meaning: Embodies love, warmth and courage.
Durability: A strong gem that holds up well in everyday jewelry.
August – Peridot
Henry Dunay Peridot Necklace, 48.63 carats. M.S. Rau. |
History
Peridot has been mined for over 4,000 years, particularly on Egypt’s Zabargad Island. Ancient Egyptians called it the “gem of the sun,” believing it offered protection from evil spirits.
Why Buy?
Unique Hue: Its lime-green color is instantly recognizable.
Affordability: A brilliant option for those seeking vibrant green at a lower price.
History: Long-standing associations with light and positivity.
September – Sapphire
Unheated Sapphire Earrings, 20.62 Carats. M.S. Rau. |
History
Known as the "Gem of Kings," sapphires were prized in the Middle Ages and the Renaissance for their celestial blue hues. The Kashmir region became famous for producing some of the most exquisite sapphires in the late 19th century.
Why Buy?
Rich Color: The intense blue is considered the pinnacle of beauty.
Durability: One of the hardest gemstones, suitable for everyday wear.
Variety: Available in an array of colors, including pink and yellow.
October – Tourmaline
Peach Tourmaline Ring, 19.74 Carats. M.S. Rau. |
History
Tourmaline was first discovered in the 16th century and quickly gained popularity for its wide range of colors. In ancient lore, it was believed to protect against negative energy and enhance creativity. Important mine and varieties include Padparadscha and Paraiba.
Why Buy?
Variety: Offers unparalleled color options, including bi-colored stones.
Affordability: Vibrant options for every budget.
Individuality: Each tourmaline is unique, making it ideal for custom designs.
November – Topaz
Edwardian-Period Topaz Necklace, 55.00 Carats. M.S. Rau. |
History
Topaz has been celebrated since ancient Greece, where it was believed to grant strength. Natural golden topaz was particularly prized in the imperial courts of 18th-century Russia.
Why Buy?
Versatility: Available in colors ranging from golden to vibrant blue.
Affordability: Treated blue topaz offers brilliance at accessible prices.
Significance: Symbolizes warmth and energy.
December – Turquoise
Turquoise and Diamond Brooch. M.S. Rau. |
History
Used as early as 3000 BCE in ancient Egypt, turquoise has adorned everything from jewelry to ceremonial masks. Its robin’s egg blue color was believed to bring protection and good fortune.
Why Buy?
Cultural Significance: A treasured gem across civilizations.
Unique Color: Its distinctive blue-green hue is unlike any other gemstone.
Timeless Appeal: A favorite in both classic and contemporary designs.