5.49 ct Natural Black Star Diopside, Oval Cabochon, Opaque, IndiaWeatherham Estate Treasures3.9(239)$74Jun 26, 2026
3.94 ct Natural Deep Navy Blue Star Sapphire, Pear Cabochon, Opaque, ThailandWeatherham Estate Treasures3.9(239)$220Jun 22, 2026