Stunning 21.54ct unheated Star Sapphire

This sapphire features a mirror luster with a crisp floating star pattern that follows the gems movement. It has a shimmering black and gold hue with full saturation, and an opaque body that amplifies this natural effect. It measures 16.6mm x 13.2mm x 8.4mm, and has a Mohs hardness rating of 9 out of 10, making it perfect for jewelry. Sourced from Thailand.