{"product_id":"cartier-art-deco-opal-brooch","title":"Cartier Art Deco Opal Brooch","description":"A striking expression of early 20th-century design, this brooch by Cartier centers a captivating natural black opal, alive with vivid flashes of deep green, electric blue and vibrant yellow. The Australian opal is AGL certified and framed within a refined, openwork geometric setting that exemplifies the bold symmetry of the Art Deco period. \u003cbr\u003e\u003cbr\u003e Approximately 1.25 carats of French and old European cut diamonds lend brilliance throughout, while the border is distinguished by rare calibré-cut opals—an exceptional and highly unusual choice that replaces traditional enamel with luminous, precisely cut gemstones. The result is a jewel of remarkable depth, color and craftsmanship, embodying both technical mastery and artistic vision. Set in platinum. \u003cbr\u003e\u003cbr\u003e Cartier stood at the forefront of the Art Deco movement, redefining modern jewelry through its embrace of geometry, contrast and innovative materials. During this celebrated era, the maison transformed design from the fluidity of naturalism to a more structured and architectural aesthetic, often drawing inspiration from global influences, including Egyptian, Asian and Cubist motifs. Pieces from this period remain among the most coveted in the world, prized for their sophistication, rarity and enduring impact on jewelry design. \u003cbr\u003e\u003cbr\u003e Circa 1930 \u003cbr\u003e\u003cbr\u003e Signed \"Cartier\" \u003cbr\u003e\u003cbr\u003e 1 1\/2\" length \u003cbr\u003e\u003cbr\u003e \u003ca href=\"http:\/\/library.rauantiques.com\/Report_32-2499.pdf\" target=\"_blank\"\u003eDownload the Report\u003c\/a\u003e","brand":"M.S. Rau","offers":[{"title":"Default Title","offer_id":44422821838983,"sku":"32-2499","price":64500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0083\/2471\/0466\/files\/32-2499_1_84784fd4-7b08-4fd8-a560-75a9cbd6c235.png?v=1775589746","url":"https:\/\/rauantiques.com\/products\/cartier-art-deco-opal-brooch","provider":"M.S. Rau","version":"1.0","type":"link"}