RO-TOUR025BG-002-443

Certificate: RO-TOUR025BG-002-443

Gem Type: Tourmaline

Weight: 1.616 Carat

Shape: Rough

Size: 8.8 x 4.6 x 3.3 mm.

Color: deep bluish green

Clarity: Transparent

Luster: N/A

Treatment: Unheated Untreated

Birefringence : 0.020
Crystallography : Hexagonal (trigonal)
Dispersion : 0.017
Luster : Vitreous
Hardness : 7