{"product_id":"antique-opal-and-diamond-ring-of-12k-gold","title":"Antique Opal and Diamond Ring of 12k Gold","description":"\u003cdiv\u003eThis antique ring dates to the late Victorian or Edwardian era, circa 1890–1910. The ring features three opals displaying vibrant play-of-color surrounded by a halo of single-cut diamonds in a classic cluster design. Opals were highly prized during this period, and their luminous appearance is beautifully complemented by the sparkle of the surrounding diamonds.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003eThe ring face measures approximately 0.4 by 0.6 inches and the ring weighs 2.44 grams. It is currently a size 5.5 and can be resized for an additional charge. The ring remains in great antique condition.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003eThe metal has been analyzed using XRF (X-ray fluorescence) spectroscopy and jeweler's acid testing and was confirmed to be 12k gold. The ring bears a 14k stamp, a discrepancy occasionally encountered in antique jewelry due to historical manufacturing practices and hallmarking inconsistencies.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003eThe opals have been identified using Raman spectroscopy, a non-destructive analytical technique that provides a chemical fingerprint for gemstone identification.\u003c\/div\u003e","brand":"Trademark Antiques","offers":[{"title":"Default Title","offer_id":44042221027393,"sku":"L486-A","price":1250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0445\/7909\/files\/antique-opal-and-diamond-ring-of-12k-gold-2433844.jpg?v=1781194408","url":"https:\/\/trademarkantiques.com\/products\/antique-opal-and-diamond-ring-of-12k-gold","provider":"Trademark Antiques","version":"1.0","type":"link"}