Natural Gems Only: 100% Earth Mined No Synthetics, No Simulates Full Disclosure of Any Treatments Our gemstones are hand-selected with a strict criteria for cut, clarity, and color. All of our gemstones are inspected, evaluated, and screened by a GIA Certified Gemologist to guarantee quality and accuracy in grading. Specifications Natural Amethyst Species: Quartz Shape/Cut: Round Brilliant Clarity: VVS-VS Color: Fine Rich Royal Purple Polish: Excellent RI: 1.54 Specific Gravity: 2.65 Hardness (Mohs): 7 Treatment: Heat Only (Standard) Origin: Brazil