FeaturedSave4 days Left2.24Ct Welo Black Opal Polished - Ethiopian Opal , 337EKsmith Heritage Auctioneers4.3(46)Est. US$20-US$40US$10
FeaturedSave3 days Left1.89Ct Welo Black Opal Polished - Ethiopian Opal , 759EKsmith Heritage Auctioneers4.3(46)Est. US$90-US$180US$20(2 bids)
FeaturedSave4 days Left2.72Ct Welo Black Opal Polished - Ethiopian Opal , 414EKsmith Heritage Auctioneers4.3(46)Est. US$90-US$180US$15(2 bids)
FeaturedSave2 days Left3.43Ct Welo Black Opal Polished - Ethiopian Opal, 388BKsmith Heritage Auctioneers4.3(46)Est. US$70-US$140US$10
Save2 days LeftAntique 10k Yellow Gold GIA Certified 3.40ct Black Opal RingMynt Auctions4.4(853)Est. US$4,823-US$6,269US$100
Save2 days Left3.50ct Black Opal, 2.00ctw Diamond and Platinum RingGWS Auctions Inc.4.5(288)Est. US$12,000-US$13,000US$1,000
Save3 days Left3 BLACK OPAL RING STERLING SILVER SIZE 8Imperial Auction4.5(276)Est. US$200-US$300US$90(4 bids)
SaveApr 02, 2026ANDREW GRIMA, MODERNIST BLACK OPAL RINGEtrusca Auctions4.2(29)Est. £2,000-£4,000£1,000
Save2 days LeftPlatinum GIA Certified 2.33ct Black Opal Baguette Diamond Cocktail RingMynt Auctions4.4(853)Est. US$4,849-US$6,303US$100
SaveApr 10, 2026s925 Pure Silver Black Opal RingTOISHINSEI Co., Ltd.4.6(161)Est. US$1,000-US$2,000US$400(1 bid)
Save3 hrs LeftPlatinum 2.29ctw Black Boulder Opal Diamond Cluster Cocktail RingMynt Auctions4.4(853)Est. US$2,002-US$2,602US$100
Save1 day LeftPlatinum GIA Certified 3.65ct Black Opal Diamond Halo RingMynt Auctions4.4(853)Est. US$6,773-US$8,804US$100
SaveApr 10, 2026925 sterling silver black opal ringTOISHINSEI Co., Ltd.4.6(161)Est. US$1,000-US$2,000US$400
Save2 days LeftGIA Certified 2.69ctw Black Opal Diamond Halo Platinum RingMynt Auctions4.4(853)Est. US$2,964-US$3,853US$100
Save4 days LeftPlatinum GIA Certified 4.04ctw Black Opal Diamond Ballerina RingMynt Auctions4.4(853)Est. US$3,913-US$5,086US$100(1 bid)
Save3 days LeftVintage Platinum 1.66ctw GIA Black Opal & Diamond Cocktail RingMynt Auctions4.4(853)Est. US$2,964-US$3,853US$100
Save6 days Left14k Yellow Gold Arrowhead Ring with Black Opal and DiamondsMynt Auctions4.4(853)Est. US$7,631-US$9,920US$100
Save2 days LeftBLACK OPAL DESIGN PLATINUM MELEE DIAMOND RING PT900NY Elizabeth 4.2(111)Est. US$2,250-US$3,300US$25
Save6 days LeftJEWELRY Black Opal Diamond Ring in Platinum PT900 US Size 6Bidhaus4.2(847)Est. US$2,509-US$3,261US$100
SaveApr 02, 2026Platinum GIA Certified 2.93ct Black Opal Diamond Halo RingMynt Auctions4.4(853)Est. US$3,588-US$4,664US$100(1 bid)
SaveApr 03, 2026TASAKI RING PT900PLATINUM BLACK OPAL DIAMONDNY Elizabeth 4.2(111)Est. US$10,275-US$15,070US$25(1 bid)
SaveApr 02, 202618 KT YELLOW GOLD RING SET WITH A BAND OF SAPPHIRES AND A CENTRAL BLACK OPALSPANGARO & CO4.3(1)Est. €2,000-€4,000€2,000
SaveApr 26, 2026Ring Black Spinel Rhodium fire opal Silver Ring 3.17ctwKings Auctions Inc4.4(129)Est. US$150-US$400US$50