Natural Black Star Sapphire

Type: Natural Black Star Sapphire

Origin: Phan Thiet, Vietnam 

Weight: 9.84

Color: Dark Grey (near jet black but a bright active star (Natural)

Cut: Cabochon Oval

Clarity: Translucent with a natural star radiating through the stone.

Approx. Size: 12x13.1x5.6 mm

Treatment: No heat treatment or enhancements detected or known about.

Hardness 9

Source: Vietnam 

Comments: This is one of those spectacular native stars highlighted against the growth lines of the xtal.