Gemstone Type : Natural Red Ruby Approx. Weight (ct) : 0.95 Cts. Shape : Oval Cabochan Size/Dimension : 6 x 5 MM Depth : 2.5 MM Color : Red Clarity : Translucent Luster : Good Origin : Africa Hardness : 9 Specific Gravity : 3.9 - 4.1 Refractive Index : 1.76 - 1.78 Chemical Composition : Al2O3 Treatment : Natural