17.10Ct Dendrite Opal Pair - Cabochon Polished , 720EKsmith Heritage Auctioneers4.3(47)$104 days Left
25.02Ct Dendrite Opal Pair - Cabochon Polished , 348BKsmith Heritage Auctioneers4.3(47)$104 days Left
47.03Ct Dendrite Opal Pair - Cabochon Polished , 970BKsmith Heritage Auctioneers4.3(47)$104 days Left
25.75ct Cushion Cabochon Multicolour Psilomelane Dendrite GemstoneWeatherham Estate Treasures4(236)$50May 13, 2026
Beautiful 6.49 CT Natural Black Opal Ring With Natural Black Diamond & 18k GoldWilliam George4.2(10)£425
Beautiful 7.45 CT Natural Black Opal Ring With Natural Black Diamond & 18k GoldWilliam George4.2(10)£550
14k Yellow Gold 2.65ct White Opal 2.89ct Sapphire 2.52ct Diamond RingRiverside Galleries4.5(206)$505 days Left
14k Yellow Gold 2.65ct White Opal 2.89ct Sapphire 2.52ct Diamond RingRiverside Galleries4.5(206)$502 days Left
3.22 ct Natural Multicolor Opal Triplet, Fancy Cabochon, Opaque, AustraliaWeatherham Estate Treasures4(236)$160May 01, 2026
OPAL ROUGH NATURAL ROCK STONE LAPIDARY SPECIMENCol. Christie Hatman Auctioneers4.4(514)$10May 01, 2026
