18K Yellow Gold Bracelet 2.3ct Diamonds, Gemstones and OpalsEst. US$17,000-US$18,000
18K Gold Natural Opal Diamond PendantEst. £5,000-£10,000
Natural Black Opal Inlay Cuff Bracelet Designer Lisa Mele 18k Gold BG717Est. US$4,480-US$6,080
18k Yellow Gold Boulder Opal Diamond Pendant Necklace with Rope ChainEst. US$3,809-US$4,951
18K White Gold Heart Cocktail Ring with 11.50 CTW in Opal & DiamondEst. US$1,800-US$2,700
Tiffany & Co. Egg Charm Pendant 18K Yellow Gold and Pink Opal (29.90 mm H x 15.00 mm W)Est. US$3,285-US$6,285
18k White Gold Opal Diamond Halo PendantEst. US$4,862-US$6,320
Vintage 18k Gold GIA Certified Pear Opal Diamond Emerald Bark RingEst. US$2,964-US$3,853
ANGELA CUMMINGS FOR TIFFANY & CO.: A PAIR OF 18K GOLD AND GEM-SET EARRINGSEst. US$4,000-US$6,000
VINTAGE 18K YELLOW GOLD OPAL DOUBLET FLUSH INLAY COMFORT FIT BAND RING -14.5GEst. US$5,091-US$5,690
Antique 18K Rose Gold 0.70ct Diamond and Opal Cocktail RingEst. US$3,500-US$4,000
18k Yellow Gold 8.86ct Opal Cocktail Ring with Diamond ProngsEst. US$3,614-US$4,698
OPAL DIAMOND CROSS DROP PENDANT 18K 750 WHITE GOLDEst. US$1,050-US$1,540
NAVAJO 18K YELLOW GOLD NATURAL LAPIS LAZULI & FIRE OPAL & DIAMOND CUFF BRACELETEst. US$9,001-US$10,060
15.80ctw Opal, 12.50ctw Diamond and 18K 3.10" EarringsEst. US$39,000-US$40,000
18K Yellow Gold 10.88ct Opal and 0.76ct Diamond RingEst. US$14,587-US$17,745
20.35ct Opal, 4.00ctw Diamond and 18K 16" NecklaceEst. US$27,000-US$28,000
18K Yellow Gold 12.00ct Amethyst 0.20ct Diamond & Marquise Cut Opal RingEst. US$7,000-US$8,000
18K White and Yellow Gold 2.0ct Diamond and Opal Cocktail RingEst. US$6,000-US$7,000
Cabochon Black Opal and Diamond Knot Ring in Platinum and 18k Yellow GoldEst. US$2,301-US$2,991
Victorian 18k Gold Fancy Bracelet with 18.00ct Diamonds and Fire OpalsEst. US$9,880-US$12,844
Victorian 18k Gold Fancy Bracelet with 18.00ct Diamonds and Fire OpalsEst. US$9,880-US$12,844
Ikuno Kanazawa AK Collection Dragonfly Opal Multistone Diamond 18k Gold BroochEst. US$3,775-US$4,550
Black Opal 18K Yellow Gold Convertible Pendant and Brooch 2 Inch 25 Ct
