Natural Black Star Sapphire 1.40ct 6-ray Star Oval Cabochon

A compact natural black star sapphire oval cabochon with a distinctive warm golden-brown body color that sets it apart from the cooler jet-black varieties. Under direct light, the stone reveals a 6-ray star against its richly toned brownish-black surface, with green-gold undertones visible in the base that speak to the complex mineral composition of this Thai sapphire.

Untreated and from Thailand, this smaller oval cabochon is ideal for delicate settings where a discreet but distinctive star sapphire is desired. The warmer golden body tone makes it a natural match for yellow or rose gold metalwork, where the complementary warm hues enhance the stone's natural character.

• Stone type: Natural black star sapphire
• Phenomenon: Asterism (6-ray star)
• Treatment: Untreated
• Cut: Oval cabochon
• Size: 6.7x5mm
• Weight: 1.40ct
• Clarity: Opaque
• Origin: Thailand

Natural black star sapphire, September birthstone - sold loose, single stone.