Natural Gems Only: 100% Earth Mined No Synthetics, No Simulants 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. MM size is the best measurement to select the right gemstone size. All gem carat weights are approximate.   100% Satisfaction Guarantee - Superior Quality - Free Matching Service Comments: The best of the best! Finest gem quality - displaying highest adularescence, exceptional clarity, cut and polish with a beautiful outline and make. Cleanest available on the market, like pure droplets of water, radiating an ethereal internal blue sheen. Super lovely and extremely hard to find. Gemstone Report Natural Rainbow Moonstone Species: Orthoclase Feldspar Shape/Cut: Round Cabochon Clarity: Clean ++ Color: Super Fine Blue Color Play Polish: Excellent RI: 1.518-1.526 Specific Gravity: 2.58 Hardness (Mohs): 6-6.5 Treatment: None Origin: Sri Lanka With this gemstone we guarantee all grading, treatment disclosure and competitive pricing. We believe in and follow full treatment disclosure of our gemstones. 100% satisfaction guaranteed. We back this gemstone with a no questions asked 30 day return policy. All of our gemstones are inspected, evaluated, and screened by a GIA Certified Gemologist to guarantee quality and accuracy in grading. Listing and template services provided by inkFrog