{"product_id":"vintage-10k-gold-black-onyx-opal-ring","title":"Vintage 10K Gold Black Onyx \u0026 Opal Ring","description":"\u003cdiv\u003eSet against a dramatic field of polished black onyx, a small opal brings an unexpected flash of color to this vintage 10K gold ring. The oval opal measures approximately 0.13 carat and displays delicate play-of-color that shifts as the ring moves in the light.\u003c\/div\u003e\u003cdiv\u003eThe elongated black onyx measures approximately 15.25 × 7.35 mm and creates a striking backdrop for the opal. Rather than surrounding the onyx with a simple frame, the setting is finished with an openwork scalloped border in yellow gold. The tiny loops and beaded details give the ring an almost lace-like quality around its otherwise bold black center.\u003c\/div\u003e\u003cdiv\u003eThe contrast is what makes this piece particularly interesting: luminous opal against glossy black onyx, surrounded by warm yellow gold. Its elongated 19.45 mm face gives the ring wonderful presence on the hand without requiring a large or heavy setting.\u003c\/div\u003e\u003cdiv\u003eThe ring is crafted in 10K yellow gold and weighs 2.48 grams. It dates to the mid-20th century and remains in excellent vintage condition with age-appropriate wear.\u003c\/div\u003e\u003cdiv\u003eDETAILS\u003c\/div\u003e\u003cdiv\u003eEra: Mid-20th Century\u003c\/div\u003e\u003cdiv\u003eMetal: 10K Yellow Gold\u003c\/div\u003e\u003cdiv\u003ePrimary Stone: Opal\u003c\/div\u003e\u003cdiv\u003eOpal Cut: Oval Cabochon\u003c\/div\u003e\u003cdiv\u003eOpal Weight: Approx. 0.13 ct\u003c\/div\u003e\u003cdiv\u003eSecondary Stone: Black Onyx\u003c\/div\u003e\u003cdiv\u003eOnyx Measurements: Approx. 15.25 × 7.35 mm\u003c\/div\u003e\u003cdiv\u003eRing Size: 6\u003c\/div\u003e\u003cdiv\u003eFace Measurements: Approx. 19.45 × 11.33 mm\u003c\/div\u003e\u003cdiv\u003eHeight: Approx. 6.3 mm\u003c\/div\u003e\u003cdiv\u003eShank Width at Base: Approx. 1.54 mm\u003c\/div\u003e\u003cdiv\u003eTotal Weight: 2.48 g\u003c\/div\u003e\u003cdiv\u003eCondition: Excellent vintage condition with age-appropriate wear\u003c\/div\u003e\u003cdiv\u003eSizing is available for an additional cost. Please contact us for sizing details.\u003c\/div\u003e\u003cdiv\u003eR10KYONY092226V003\u003c\/div\u003e","brand":"Gilded Roach","offers":[{"title":"Default Title","offer_id":49151667667134,"sku":"R10KYONY092226V003","price":420.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/1971\/5262\/files\/PXL_20260924_024353564_4227753.jpg?v=1790309587","url":"https:\/\/gildedroach.com\/products\/vintage-10k-gold-black-onyx-opal-ring","provider":"Gilded Roach","version":"1.0","type":"link"}