Adamas Diamond and Moissanite Tester the world's first diamond and moissanite tester with interchangeable and micro prob tips by Presidium. This tester can used with the optional special micro probe tip that is able to authenticate diamond melees as small as 0.01 carats. This tester features built-in memory chip for up to 500 test records, dynamic display with super bright micro LED for clear and distinct results, sleek chrome_brushed ergonomic grip and a USB port for alternative power source and connectivity.