Natural Loose Lightning Ridge Black Opal 2.96ct. - GIABrunk Auctions4.6(515)$2,000(1 bid)Jun 10, 2026
22.5ct Oval Cut Cabochon Bright Iridescence Multicolor Black Opal GemstoneWeatherham Estate Treasures3.9(238)$1,3007 days Left
29.62 Ct Natural Black Flashing Fire "Night Blaze" Opal Oval CabGems Auction4.7(458)$95(3 bids)21 hrs Left
Natural Multi-Color Opal Gemstones 8.09 Ct. Oval Cabochon Shape 19.4 x 13.8 Mm.Treasure of Gems & Jewelry4.4(234)$13 days Left
29.01 Ct Natural Black Flashing Fire "Starlit Flame" Opal Oval CabGems Auction4.7(458)$100(4 bids)21 hrs Left
21.90 Ct Natural Black Flashing Fire "Shadowfire" Opal Oval CabGems Auction4.7(458)$95(4 bids)21 hrs Left
21.46 Ct Natural Black Flashing Fire "Eclipse Flame" Opal Pear CabGems Auction4.7(458)$14(3 bids)21 hrs Left
3.77 ct Fancy Cabochon Natural Multicolor Opal TripletWeatherham Estate Treasures3.9(238)$160Jun 10, 2026
Natural Multi-Color Opal Gemstones 1.75 Ct. Oval Cabochon Shape 9.8 x 6.3 Mm.Treasure of Gems & Jewelry4.4(234)$13 days Left
