Not all diamonds are the same. The professionals rely on various tools to test diamonds and other gemstones. The Presidium Adamas Diamond Tester could certainly help. It identifies diamonds, moissanites, simulants, and metals quickly and lets you test diamonds as small as 0.02ct. The device features a LED display, an ergonomic grip, and a retractable thermoelectric probe tip.
The above video shows this diamond tester in action. You may want to check Presidium Instruments’ YouTube channel to find out how to properly use this device to test diamonds.