18K White Gold Ladies Pendant with 13.73ct Australian Opal and 0.37ct tw Adjacent DiamondsEst. $7,250-$8,500
18k Solid Gold Ring with Spectacular colorful Harlequin OpalEst. $4,680-$6,480
Opal, Diamond, Gold Ring Stones: Opal cabochon;Est. $5,000-$7,000
Delightful Harlequin Australian Opal Ring Set on Made in Italy 18k solid goldEst. $1,872-$2,592
David Webb Newport Earrings Platinum 18K Gold Opal Rock CrystalGroup of 14K and 18K Gold JewelryEst. $1,500-$2,500
Delicious 18k Solid Gold Ring with Harlequin OpalEst. $676-$936
Late 20th Century Brazilian Opal in Sterling and 18k Gold PendantSize 9 .20ct Pear Cut White Opal in 18K Gold Plated RingEst. $150-$250
Size 8 .15ct Oval Cut White Opal in 18K Gold Plated RingEst. $130-$200
Size 8 .13ct Oval Cut Opal in 18K Gold Plated RingEst. $130-$200
Estate 6.20ct Opal Diamond 18k Yellow Gold Wide BraceletEst. $23,089-$27,937
18K Yellow Gold 4.92 Ct Opal Diamond Bracelet 108 StonesEst. $28,009-$33,891
Vintage 8.00ct Pear Australian Opal Diamond Ring in 18k White Gold Size 6Est. $11,438-$13,840
Pear Opal and Diamond 18k White Gold Vintage Cocktail Ring Size 6.5Est. $10,884-$13,170
Australian Opal Diamond Paraiba Tourmaline Peacock Pendant in 18k Yellow GoldOpal and Diamond Ring in 18K Yellow Gold with 48.36 Carat Center StoneEst. $19,766-$23,917
Rare 18k 1980 Paloma Picasso 7ct Black Opal Torsade Necklace Tiffany Co NG1760Chantecler Pink Opal Diamond 18k White Gold Campanelle Bell PendantEst. $3,400-$4,100
Cartier Vintage 1970s 18K Yellow Gold Fire Opal NecklaceJ.G.JLRY - 18 kt. Yellow gold, 18K Yellow Gold Bracelet 2.30ct Diamonds, Gemstones & Opals Diamond18K White Gold Opal Diamond Pendant Necklace 16 Inch Cable LinkEst. $4,068-$4,922
Cartier Vintage 1970s 18K Yellow Gold Fire Opal NecklaceVintage 18k Yellow Gold Horse Brooch Pendant With Fire Opal and DiamondsEst. $5,474-$6,623
