Gemstone Type : Natural Green Emerald Approx. Weight (ct) : 1.15 Cts. Shape : Oval Size/Dimension : 5 x 4 MM Depth : 2 MM Color : Green Clarity : Translucent Luster : Good Origin : Colombia Hardness : 7.5 Specific Gravity : 2.67 - 2.84 Refractive Index : 1.56 - 1.59 Chemical Composition : Be3al2(Sio3)6 Treatment : Natural Quantity : 3 Pc (s)