Cicada Jewelry 18k Gold Brown Diamond Koroit Boulder Opal Plique a Jour MOP BroochEst. $15,000-$20,000
4.92ct Natural Opal Cabochon 18k Gold RingEst. $1,500-$2,000
Vintage 18k Gold Diamond & Black Opal Ring SignedEst. $800-$1,200
18k Gold Platinum Boulder Opal Diamond Pendant Lot of 2Est. $600-$1,200
Natural Black Opal Inlay Cuff Bracelet Designer Lisa Mele 18k Gold BG717Est. $5,000-$6,000
AN 18K GOLD AND STERLING SILVER OPAL RINGEst. $100-$800
Tiffany & Co 18k Gold Opal Black Jade Inlay Checkerboard EarringsEst. $3,500-$5,000
18k Gold Black Australian Opal Diamond RingEst. $500-$1,000
18k Gold Black Australian Opal Diamond Pendant NecklaceEst. $1,500-$2,500
Pair of 18K Gold and Opal EarringsEst. $100-$200
18k Gold 41.00ct Opal 2.55ct Diamond NecklaceEst. $16,513-$25,275
18k Gold 41.00ct Opal 2.55ct Diamond NecklaceEst. $16,513-$25,275
18k Gold 41.00ct Opal 2.55ct Diamond NecklaceEst. $16,513-$25,275
18k Chain Link Bracelet and 14k Bracelet with Amethyst and OpalEst. $600-$1,200
Tiffany & Co. Vintage 18k Gold Opal Mother of Pearl Pansy Clip-On EarringsEst. $12,454-$16,190
18K yellow gold orb pendant decorated with opal cabochons. 1 1/8"Drop x 19.9mm WidthEst. $600-$900
18K WHITE GOLD 6.40CT DIAMOND AND OPAL PENDANTEst. $5,000-$10,000
18K Gold Inlaid 6.2ct Opal PendantEst. £4,000-£8,000
18K Gold Inlaid 2.9ct Opal Diamond PendantEst. £3,600-£7,200
18K gold natural opal necklaceEst. $33,000-$66,000
18K Gold Opal RingEst. £1,200-£2,400
Elegant 18K White Gold Opal 8.60 Ct Diamond RingEst. $1,807-$2,349
Elegant 18k White Gold Opal Diamond Halo Ring US Size 8Est. $3,263-$4,241
18K YELLOW GOLD 3.50CT DIAMOND, OPAL, EMERALD AND SAPPHIRE FLOWER BROOCHEst. $5,500-$11,000
