Edwardian 18k Gold Platinum Opal Diamond Halo Cluster RingEst. $3,770-$4,901
18K Yellow Gold Boulder Opal & Diamond PendantEst. $10-$100,000
18K gold natural opal earringsEst. $21,000-$42,000
OPAL DIAMOND BUTTERFLY NECKLACE 18K 750 ROSE GOLDEst. $1,050-$1,540
Cocktail Ring in 18k Yellow Gold with Natural Opal and Diamond AccentsEst. $1,534-$1,994
WHITE OPAL DIAMOND NECKLACE 18K 750 YELLOW GOLDEst. $975-$1,430
Gucci Lion Head Ring 18K Yellow Gold Fire Opal Diamond Size 7Est. $2,509-$3,261
18K gold natural opal ringEst. $4,400-$8,800
18k Yellow Gold GIA Certified 2.15ct Black Opal Diamond Cocktail RingEst. $2,288-$2,974
Rachel Koen Vintage Opal Ruby Cocktail Ring 18K Yellow GoldEst. $1,638-$2,129
Estate 6.20ct Opal Diamond 18k Yellow Gold Wide BraceletEst. $13,169-$17,119
18K Yellow Gold 4.92 Ct Opal Diamond Bracelet 108 StonesEst. $14,547-$18,911
18k Gold Opal Aquamarine Drop EarringsEst. $2,000-$3,000
Estate 6.20ct Opal Diamond 18k Yellow Gold Wide BraceletEst. $13,169-$17,119
18K Australian Opal Teardrop RingEst. £2,000-£4,000
Cartier Vintage 1970s 18K Yellow Gold Fire Opal NecklaceEst. $13,260-$17,238
Edwardian 18k Gold Platinum Opal Diamond Halo Cluster RingEst. $3,770-$4,901
Estate 18k White Gold Diamond Opal Long EarringsEst. $15,808-$20,550
Antique Victorian 18k Gold Opal Diamond Dome Ring 1.02ctEst. $3,913-$5,086
18k Yellow Gold 8.86ct Opal Cocktail Ring with Diamond ProngsEst. $3,614-$4,698
Platinum 18k Yellow Gold Oval Opal Diamond Cocktail RingEst. $2,002-$2,602
18k Yellow Gold Oval Opal Cabochon Ring with Textured Openwork Shoulders size 7Est. $10-$100,000
18K Yellow Gold 10.88ct Opal and 0.76ct Diamond RingEst. $14,587-$17,745
18k Yellow Gold Fire Opal Diamond Teardrop Pendant NecklaceEst. $2,249-$2,923
