Diamond Testers

The diamond tester pen is an electronic testing instrument designed based on the principle of diamond's high thermal conductivity. Powered by a 9V battery, diamond checking machine manually adjust the sensitivity. Diamond detector uses a high-precision alloy probe, making 90° perpendicular contact with the diamond being tested. The authenticity and hardness of the gemstone are determined through indicator lights and a scale. The diamond tester pen offers high accuracy and is easy to operate, can be used for the authenticity testing of diamonds, jade, and other gemstones.

This gemstone tester for sale, with a clear and intuitive analog scale, making it easy to operate and providing intuitive readings. Utilizing a 0.6 mm retractable thermoelectric probe, gem hardness tester can accurately test diamonds as small as 0.02 ct. Supplied by two AA alkaline batteries, the diamond detector can operate continuously for approximately 2.5 hours. The diamond and gem tester is used in the jewelry industry for quickly identifying genuine diamonds and distinguishing them from imitations.