3.60ct AFRICAN BLACK OPAL OVAL CABOCHON CUT NATURAL UNTREATED RAREModern Jewelry4.4(205)$2,400Mar 19, 2026
4.71ct AFRICAN BLACK OPAL OVAL CABOCHON CUT NATURAL UNTREATED RARE 13x10mmModern Jewelry4.4(205)$3,300Mar 19, 2026
2.13ct Oval Cabochon Natural Multicolor Black Opal GemstoneWeatherham Estate Treasures4(220)$1501 day Left
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Natural Multi-Color Opal 1.23 Ct. Oval Cabochon Shape 8.9 x 6.9 Mm Gemstone From EthiopiaTreasure of Gems & Jewelry4.4(221)$15 days Left