{"product_id":"vintage-10k-gold-black-onyx-diamond-ring","title":"Vintage 10K Gold Black Onyx \u0026 Diamond Ring","description":"\u003cdiv\u003eThis vintage ring features a polished black onyx plaque set in 10K yellow gold, with a softly lobed shape that gives the stone an especially distinctive silhouette. The onyx measures approximately 13.65 × 8.30 mm and is framed by a simple yellow gold border.\u003c\/div\u003e\u003cdiv\u003eAt the center of the black onyx is a geometric platinum accent set with a small natural single-cut diamond measuring approximately 0.01 carat. The bright platinum and diamond create a crisp contrast against the dark onyx, while the open gallery and split shoulders give the ring an interesting profile from every angle.\u003c\/div\u003e\u003cdiv\u003eThe ring is stamped 10K and weighs 3.29 grams. The substantial 2.22 mm shank at the base makes this a nicely constructed vintage ring with plenty of presence on the hand.\u003c\/div\u003e\u003cdiv\u003eThere appears to be a small amount of adhesive or residue around the center diamond and platinum setting, likely from a previous repair or reinforcement. It is visible under close inspection and has been left as found. Please review the photographs carefully, as they form an important part of the condition description.\u003c\/div\u003e\u003cdiv\u003eSizing is available for an additional cost. Please contact us for sizing details.\u003c\/div\u003e\u003cdiv\u003eDETAILS\u003c\/div\u003e\u003cdiv\u003ePeriod: Vintage, Mid to Late 20th Century\u003c\/div\u003e\u003cdiv\u003eMetal: 10K Yellow Gold with Platinum Accent\u003c\/div\u003e\u003cdiv\u003eStones: Black Onyx \u0026amp; Natural Diamond\u003c\/div\u003e\u003cdiv\u003eOnyx Measurements: Approx. 13.65 × 8.30 mm\u003c\/div\u003e\u003cdiv\u003eDiamond Cut: Single Cut\u003c\/div\u003e\u003cdiv\u003eDiamond Weight: Approx. 0.01 ct\u003c\/div\u003e\u003cdiv\u003eRing Size: 7\u003c\/div\u003e\u003cdiv\u003eTop Dimensions: Approx. 15.82 × 11.11 mm\u003c\/div\u003e\u003cdiv\u003eHeight: Approx. 6.30 mm\u003c\/div\u003e\u003cdiv\u003eShank Width: Approx. 2.22 mm at base\u003c\/div\u003e\u003cdiv\u003eTotal Weight: 3.29 g\u003c\/div\u003e\u003cdiv\u003eCondition: Excellent vintage condition with age-appropriate wear. A small amount of apparent adhesive or residue is visible around the center diamond and platinum setting, consistent with a previous repair or reinforcement.\u003c\/div\u003e\u003cdiv\u003eR10KYONY092226V002\u003c\/div\u003e","brand":"Gilded Roach","offers":[{"title":"Default Title","offer_id":49151667732670,"sku":"R10KYONY092226V002","price":485.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/1971\/5262\/files\/PXL_20260924_222603554_4227745.jpg?v=1790309587","url":"https:\/\/gildedroach.com\/products\/vintage-10k-gold-black-onyx-diamond-ring","provider":"Gilded Roach","version":"1.0","type":"link"}