Natural Multi Color Flashing Boulder Opal Gemstones 4.44 Ct. Oval Cabochon Shape 11.7 x 10.3 Mm.Treasure of Gems & Jewelry4.4(233)$1May 31, 2026
1.66 Carats Electric Green Web Matrix Boulder Opal - Natural Australian Stone, LZ47ThousandPlanet4.6(277)$52 hrs Left
2.55 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 11.8x6.8mm, 9XMThousandPlanet4.6(277)$52 hrs Left
3.63 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 11.3x9.2mm, 10XMThousandPlanet4.6(277)$5(1 bid)2 hrs Left
2.22Ct Welo Black Opal Faceted Polished - Ethiopian OpalKsmith Heritage Auctioneers4.3(47)See Sold PriceJul 26, 2025
2.74Ct Welo Black Opal Faceted Polished - Ethiopian OpalKsmith Heritage Auctioneers4.3(47)See Sold PriceJul 27, 2025
2.07Ct Welo Black Opal - Ethiopian Opal - Faceted PolishedKsmith Heritage Auctioneers4.3(47)See Sold PriceJul 27, 2025
