Round Opal cabochon 14k gold ring. For Sale at 1stDibs 10K Gold and Opal Cabochon Ring Lot 14K YELLOW GOLD 3.04CTTW WHITE OPAL CABOCHON RING Round Opal cabochon 14k gold ring. For Sale at 1stDibs Cabochon Opal and 18K Yellow Gold Cocktail Ring at 1stDibs opal chevy. Size 7. 5 Materials: 10K gold, opal Condition: excellent Box shown for display purposes only, not included nor for sale, but ring will ship in a lovely new cushioned ring box that is perfectly suited for presentation. More Vintage & Antique Jewelry here. Select ShopPay at checkout and pay in 4 interest free installments but receive your item straight away!