Item No : 9046654 Gemstone Type : Natural Rainbow Moonstone Approx. Weight (ct) : 7.55 Cts. Shape : Oval Size/Dimension : 13.5 x 9.5 MM Depth : 7 MM Color : Blue Rainbow Clarity : Translucent Luster : Good Origin : Srilanka Hardness : 6 Specific Gravity : 2.64 - 2.68 Refractive Index : 1.533 - 1.552 Chemical Composition : KAlSi308 Treatment : Natural