Natural Rough Ruby - 12.845 ct - natural ruby - heated

Natural Rough Ruby - 12.845 ct - natural ruby - heated

Certificate: RO-RUBY026PR-003-460

Gem Type: Corundum - Ruby
Weight: 12.845 Carat
Shape: Rough
Size: 15.0 x 13.5 x 7.3 mm.
Color: Purplish pinkish red
Clarity: Opaque
Luster: N/A
Treatment: heated, with residue

Birefringence : 0.008-0.009
Luster : Vitreous
Hardness : 9
Inclusions : mainly silk 
Refractive index : 1.757-1.779
Specific gravity : 3.99-4.1
Dispersion : 0.018

COMMENTS :

indications of heating, Fissure Filling
color and clarity enhanced

find he online certificate here