At KASSOY, we have a wide selection of Diamond Testers to meet the demands of the gem and jewelry industry in a time when accurate testing of diamonds is more important than ever. Here you will find Diamond Testers to separate Diamonds from Moissanite and other Diamond Simulants, as well as Synthetic & Treated Diamond Testers to distinguish Natural Type I Diamonds from Lab Created Type IIa Diamonds or HPHT treated Diamonds. KASSOY carries Diamond Testers by the best gem testing companies including GemOro, Presidium, SmartPro, and Gemlogis. If you have any questions regarding how these Diamond Testers work, or which one will best meet your needs, please don't hesitate to call KASSOY to speak with someone from our knowledgeable Sales Team. Call us at 800-452-7769 for more information!