Pt900 Platinum 7.90ct Natural Black Opal and 0.56ctw Natural Diamond Pendant Necklace W/CGL ReportEstimate: $10 - $100,000Starting Bid$10Atlanta, GAGallery 634.6(309)
Buy NowRare 18k 1980 Paloma Picasso 7ct Black Opal Torsade Necklace Tiffany Co NG1760$18,610Lakeway, TXEco Estate Jewelry4.3(7)
14K Yellow Gold Adjustable Black Opal Pendant Necklace 1.42ctEstimate: $2,806 - $3,227Starting Bid$100New York, NYDiamond Depot4.3(16)
JEWELRY BLACK OPAL DIAMOND NECKLACE 18KWG WHITE GOLD MULTICOLOREstimate: $4,660 - $6,450Starting Bid$100Beverly Hills, CANY Elizabeth 4.3(130)
JEWELRY BLACK OPAL DIAMOND NECKLACEEstimate: $5,200 - $7,200Starting Bid$3,000Beverly Hills, CANY Elizabeth 4.3(130)
PT900/PT850 BLACK OPAL NECKLACEEstimate: $2,970 - $4,115Starting Bid$1,700Beverly Hills, CANY Elizabeth 4.3(130)
PT900/PT850 BLACK OPAL NECKLACEEstimate: $3,175 - $4,395Starting Bid$1,900Beverly Hills, CANY Elizabeth 4.3(130)
14K Yellow Gold Adjustable Black Opal Pendant Necklace 1.42ctEstimate: $1,729 - $2,247Starting Bid$1,325New York, NYMynt Auctions4.5(940)
14K Yellow Gold Adjustable Black Opal Pendant Necklace 1.42ctEstimate: $1,729 - $2,247Starting Bid$100New York, NYBidhaus4.3(887)
Tiffany & Co 18k Yellow Gold Inlaid Mother Of Pearl Flower NecklaceEstimate: $9,529 - $10,958Starting Bid$100Feasterville, PAFortrove - Fine Jewelry4.3(11)
Buy NowOPAL DIAMOND GOLD NECKLACE ENAMEL 18K YELLOW BUTTON LINK VINTAGE UNIQUE$26,144Valley Village, CAModern Jewelry4.5(224)
Buy Now18K White Gold 1.50ct Diamond, Opal, Emerald, and Garnet Necklace$8,500Broomall, PAEastern European Art Gallery Inc4.3(4)
BAILEY BANKS & BIDDLE PLATINUM OPAL DIAMOND PENDANT EDWARDIAN1910SEstimate: $16,830 - $18,810Starting Bid$13,750Valley Village, CAModern Jewelry4.5(224)
Buy NowBAILEY BANKS & BIDDLE PLATINUM OPAL DIAMOND PENDANT EDWARDIAN1910S$16,830Valley Village, CAModern Jewelry4.5(224)
A gem-set, 18k gold and platinum slide pendantEstimate: $1,800 - $2,500Starting Bid$900Oakland, CAClars Auctions4.6(1k)
15.22ct Opal, 0.45ct Pink Sapphire and 0.31ctw Diamond Platinum Pendant with Black EnamelEstimate: $6,790 - $11,790Starting Bid$3,350Miami, FLRedland Realty & Auction
Black Opal 18K Yellow Gold Convertible Pendant and Brooch 2 Inch 25 CtEstimate: $5,005 - $6,506Starting Bid$3,850New York, NYMynt Auctions4.5(940)
ANTIQUE VICTORIAN 14K YELLOW GOLD AUSTRALIAN FIRE OPAL ENAMEL FLOWER PENDANTEstimate: $2,371 - $2,650Starting Bid$1,950Valley Village, CAModern Jewelry4.5(224)
14.11ct Opal, 0.14ct Emerald and 0.26ctw Diamond Platinum RingEstimate: $6,990 - $11,990Starting Bid$3,450Miami, FLRedland Realty & Auction
Black opal teardrop pendant with a diamond and a white gold chain; 2.56 gEstimate: $1,664 - $2,304Starting Bid$1,250Manchester, EnglandHIGH END GEMS & JEWELS LTD4.3(3)
Buy NowUnbranded 18k Yellow Gold Black Opal Diamond Charm Pendant$1,000New York, NYDiamond Depot4.3(16)