ARI™ by Presidium - Diamond, CVD/HPHT, Moissanite Tester quote This book is perfect for:

This book is perfect for:

Reliably distinguishes natural diamonds from CVD/HPHT lab-grown diamonds and all moissanites

Prior to the 16th century the technology did not exist to either cut or polish a diamond

Becoming A Connoisseur: Essentials

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ARI™ by Presidium - Diamond, CVD/HPHT, Moissanite Tester quote This book is perfect for:The Presidium ARI (Advanced Refractive Index) is a professional, handheld PRESIDIUM DIAMOND VERIFICATION INSTRUMENT designed to accurately distinguish colorless natural diamonds from CVD HPHT lab grown diamonds and all types of moissanite. Engineered for both loose stones and mounted jewelry, including closed back settings, it delivers dependable identification in just 3 seconds. Using advanced UV light absorbance technology, ARI analyzes the optical