Item No : 7703773 Gemstone Type : Natural Unheated VS Electric Blue Afgan Kunzite Approx. Weight (ct) : 4.00 Cts. Shape : Round Size/Dimension : 8.00 MM Depth : 6.5 MM Color : Lith Blue Clarity : Transparent Luster : Fine Origin : Afganisthan Hardness : 6 Specific Gravity : 3.17 - 3.23 Refractive Index : 1.65 - 1.66 Chemical Composition : LiAl(SiO3)2 Treatment : Natural