Item No : 391882 Gemstone Type : Natural Moonstone Approx. Weight (ct) : 12.40 Ct. Shape : Oval Cabochan Size/Dimension : 18 x 13 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 Quantity : 1 Pc (s)