Black Opal 18K Yellow Gold Convertible Pendant and Brooch 2 Inch 25 CtDiamond Depot4.3(16)$2,6506 days Left
5.575ct Natural Black Opal and 0.50ctw Natural Diamond Platinum Ring with MemoGallery 634.6(294)$130(2 bids)Sep 9, 2026
Vintage 14k Yellow Gold Black Opal Diamond Cocktail Ring Size 5Mynt Auctions4.5(912)$1,7506 days Left
Opal Brooch on Stylized HorseshoeKastern GmbH & Co. KG Das Kunst u. Auktionshaus4.3(7)€440Sep 26, 2026
SOLID SEMI-BLACK OPAL SURROUNDED BY A HALO OF DIAMONDS & EMERALDS IN 14CT YELLOW GOLD RING SETTINGDynasty Heritage Auctions$550(3 bids)45 mins Left
VINTAGE SOLID BLACK OPAL PIN BROOCH IN 9CT YELLOW GOLDDynasty Heritage Auctions$110(2 bids)45 mins Left
