Certificate: I.G.E. (Instituto Gemólogico Español). Report Nº D-14845 Species: Quartz, natural. Variety: Amethyst, natural. Color: dark purple Weight: 9.39 ct Transparency: transparent Shape & cut: Pear checkerboard cut. Cut grade: Good Measurements: 17.65 x 12.79 x 8.78 mm Origin: Mursinsk, Siberia (Russian Federation) Country of Origin as expressed herein, is only based on a spontaneous declaration of the seller, agreed as possible from the expert, although not substantiated by an oficial expert opinion from the Gemological Laboratory issuing the report. Refractive index: 1.532-1.554 Hardness: 7.0 Mohs scale Internal Reference: DVGMCW119 Treatment: Not mentioned in the report Shipping method: It will be well packaged and registered shipping via Correos. Any extra expenses due to your country's customs office will be responsibility for the buyer.