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 Gemstone Report Natural White Opal Species: Opal Shape/Cut: Round Cabochon Quality: AAA+ Clarity: Clean + Color: Extra Fine White (Extra Fine Color Play) Polish: Excellent RI: 1.45 Specific Gravity: 2.15 Hardness (Mohs): 5-6.5 Treatment: None Origin: Australia Guarantee 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