How to identify Natural Diamonds, Lab-grown Diamonds, Moissanite and Diamond Simulants in seconds!

Elevate your diamond identification capabilities with the ARI by Presidium, the trusted Diamond Verification Instrument®. When paired with the Presidium Diamond Mate Tester (PDMT-A), you gain a powerful and efficient toolset for quick and reliable diamond screening. Invest in the ARI and PDMT-A combination today and experience the convenience and reliability of industry-leading diamond identification technology.

Here's how you can use them in just two simple steps:

Step 1: Use the Diamond Mate-A

The Presidium Diamond Mate Tester (PDMT) has a retractable probe tip that ensures consistent pressure against the gemstone during testing for more reliable results. With the industry’s thinnest probe tip size of 0.6mm, PDMT tests diamonds as small as 0.02ct. Test results are instantly indicated by an LED light and continuous audible beep

Step 2: Use the ARI by Presidium

ARI by Presidium is a handheld diamond and moissanite screener that distinguishes colorless diamonds from CVD/HPHT lab-grown diamonds or moissanites—for loose and mounted stones including jewelry pieces with a closed back setting. ARI provides a clear and accurate result of "Diamond", CVD/HPHT/Type IIa" and "Moissanite" in 3 seconds.