Natural Topaz - 11.881 ct - Rough topaz - facet quality

Natural Topaz - 11.881 ct - Rough topaz - facet quality

Certificate: RO-TOPA026CL-003-466

Shape & Cutting Style : rough gemstone crystal
Measurements : 12.7 x 10.3 x 8.9 mm
Carat Weight : 11.881 carat
Color :  White (pinkish influence)
Clarity : depends on selection when cutting
Transparency : Transparent
Binefringence: 0.008-0.011
Crystallography : Orthorhombic
Hardness : 8
Luster : depends on cutting style
Refractive Index : 1.607-1.649 
Specific Gravity : 3.50-3.57

COMMENTS :

no indications of treatment

find the online certificate here