Item No : 9364105 Gemstone Type : Natural Moonstone Approx. Weight (ct) : 12.45 Cts. Shape : Oval Cabochan Size/Dimension : 18 x 13 MM Depth : 7 MM Color : Gray Clarity : Translucent Luster : Good Origin : India Hardness : 6 Specific Gravity : 2.64 - 2.68 Refractive Index : 1.533 - 1.552 Chemical Composition : KAlSi3O8 Treatment : Natural