Natural Black 6 Ray Star Sapphire 1.40ct Oval Cabochon Untreated

A natural black star sapphire oval cabochon with a blazing 6-ray star visible across the full width of the dome under direct light. The stone reveals warm golden-brown undertones through its dark body, with the silky rutile needles responsible for the asterism clearly traceable as fine parallel bands. Two natural fracture lines add to the stone's honest character and confirm its completely untreated origin.

Sourced from Thailand and left unheated, this oval cabochon presents the authentic optical qualities of a natural star sapphire. The elongated outline suits east-west ring settings, oval bezels, and statement pendants where the star can track a moving light source dramatically.

• Stone type: Natural black star sapphire
• Phenomenon: Asterism (6-ray star)
• Treatment: Untreated
• Cut: Oval cabochon
• Size: 8.4x6.5mm
• Weight: 1.4ct
• Clarity: Opaque
• Origin: Thailand

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