The GemLogis BELIZE PRO features an enhanced method for identifying natural diamonds compared to other testers, especially for unique natural diamonds that are less responsive to UV and may detect as Moissanite The BELIZE PRO quickly differentiates between earth-mined diamond / Type IIA- HPHT / CVD diamond / Simulant / and Moissanite (including F1 Moissanite). Test loose or mounted stones in rings, pendants, and earrings - both open and closed back. BELIZE PRO's stone testing range is 1.50mm and larger for size; 0.02 ct for weight; and colors D-J. Test results are indicated on the tester's screen and by an audible chime, which can be switched on / off. The outfit includes the BELIZE PRO tester, universal charger, metal stone holder, UV protective gloves and glasses, microfiber cloth, user manual, and a lanyard.