Original Presidium Multi Tester III Diamonds Moissanite ( Pmut III ) Multi Tester is the worlds first tester that tests for both diamonds and moissanites in a single instrument, Its measuring probes and electronics circuitries detect data from the gemstone being tested via a customized micro-controller, identifying diamonds and moissanites based on their thermal and electrical properties. Multi Tester III (PMuT III), A pocket-sized instrument that instantly identifies diamonds and moissanites based on their thermal and electrical properties. Showcasing a new ergonomic design with a rubberized anti-slip grip, PMuT III promises greater ease of handling during testing. PMuT III has a retractable probe tip that ensures consistent pressure against the gemstone during testing for more reliable results, With the industry&#39;s thinnest probe tip size of 0.6mm, PMuT III tests diamonds as small as 0.02ct... For more details please check product description. Multi Tester III is the only instrument needed to verify the authenticity of diamonds against moissanites, cubic zirconia, and other diamond simulants.