3.60ct AFRICAN BLACK OPAL OVAL CABOCHON CUT NATURAL UNTREATED RAREModern Jewelry4.4(205)US$2,400Mar 19, 2026
Natural Multi Color Flashing Opal Boulder 27.75 Ct. Free Form Cabochon Shape 30 x 19.2 Mm. GemstoneTreasure of Gems & Jewelry4.4(221)US$1Mar 08, 2026
4.71ct AFRICAN BLACK OPAL OVAL CABOCHON CUT NATURAL UNTREATED RARE 13x10mmModern Jewelry4.4(205)US$3,300Mar 19, 2026
2.86 ct Natural Multicolor Opal Triplet, Oval Cabochon, Opaque, AustraliaWeatherham Estate Treasures4(220)US$140Mar 06, 2026
Natural Multi-Color Opal 1.23 Ct. Oval Cabochon Shape 8.9 x 6.9 Mm Gemstone From EthiopiaTreasure of Gems & Jewelry4.4(221)US$16 days Left
ABALONE CABOCHON ROCK STONE LAPIDARY SPECIMENCol. Christie Hatman Auctioneers4.3(488)US$5214 Lots Away