23.7ct Oval Cabochon Black with Blue Sparkle Nuummite GemstoneWeatherham Estate Treasures4(221)$1651 hr Left
4.71ct AFRICAN BLACK OPAL OVAL CABOCHON CUT NATURAL UNTREATED RARE 13x10mmModern Jewelry4.4(204)$3,300Mar 19, 2026
5.49 ct Natural Black Star Diopside, Oval Cabochon, Opaque, IndiaWeatherham Estate Treasures4(221)$74Mar 06, 2026
Black Nuummite Oval Cabochon Gemstone with Blue SparkleWeatherham Estate Treasures4(221)$1605 days Left
SNOWFLAKE OBSIDIAN CABOCHON ROCK STONE LAPIDARY SPECIMENCol. Christie Hatman Auctioneers4.3(490)$32 hrs Left
15.01ct Natural Black with Blue Sparkle Nuummite, Oval, OpaqueWeatherham Estate Treasures4(221)$1502 days Left
Natural Blue Sapphire 11.36 Ct. Oval Cabochon Shape 13.5 x 10.7 Mm Gemstone From MadagascarTreasure of Gems & Jewelry4.4(221)$14 days Left
SNOWFLAKE OBSIDIAN CABOCHON ROCK STONE LAPIDARY SPECIMENCol. Christie Hatman Auctioneers4.3(490)$32 hrs Left
SNOWFLAKE OBSIDIAN CABOCHON ROCK STONE LAPIDARY SPECIMENCol. Christie Hatman Auctioneers4.3(490)$32 hrs Left
