This 35.49ct Tanzanite Stone is amazing and described in detail as follows: EGL USA Laboratory Report: US 68368205C Weight: 35.49ct Shape and Cut: Triangular Cushion Modified Brilliant Measurements: 20.42 x 19.89 x 12.32 mm Color: Blue Violet Transparency: Transparent Refractive Index: 1.691-1.700 L.W. Fluorescence: Inert S.W. Fluorescence: Inert Identifying Characteristics: Pleochroism Spectral Analysis: 600nm Conclusion: Natural Tanzanite Comments: Tanzanite is commonly enhanced by heating, which is a stable yet undeterminable enhancement. Universal Gemological Services (UGS) is an affiliate of the European Gemological Laboratory (EGL) and has appraised this Tanzanite Stone as follows back in January of 2014: $39,040.00 CLICK HERE FOR THE GEMSTONE ANALYSIS REPORT. CLICK HERE FOR THE APPRAISAL.*Pickup and viewing only M-F 8:30PM to 4:00PM