Natural Loose Lightning Ridge Black Opal 2.96ct. - GIABrunk Auctions4.6(516)$2,200(2 bids)4 days Left
11.33ct Marquise Cabochon Natural Multicolor Black Opal GemstoneWeatherham Estate Treasures3.9(239)$630Jun 17, 2026
Natural Green Emerald Gemstones 2.07 Ct. Oval Cabochon Shape 9.5 x 7.2 Mm.Treasure of Gems & Jewelry4.4(237)$14 days Left
3.77 ct Fancy Cabochon Natural Multicolor Opal TripletWeatherham Estate Treasures3.9(239)$1604 days Left
3.22 ct Natural Multicolor Opal Triplet, Fancy Cabochon, Opaque, AustraliaWeatherham Estate Treasures3.9(239)$160Jun 26, 2026
*8.50Ct Welo Black Opal Polished - Ethiopian Opal - Oval Cabochon , 61EKsmith Heritage Auctioneers4.3(47)$6022 hrs Left
*7.99Ct Welo Black Opal Polished - Ethiopian Opal - Oval Cabochon , 59EKsmith Heritage Auctioneers4.3(47)$5022 hrs Left
Natural Multi-Color Play Of Colour Opal Gemstone 4.67 Ct. Oval Cabochon Shape 14.4 x 10.6 Mm.Treasure of Gems & Jewelry4.4(237)$1Jun 28, 2026
