Diamond Testers

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Diamond Tester Pen

SISCO-DT-B2009

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.

$103.54

Gem Tester Pen

SISCO-DT-PGT-II

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.

$777.38

A diamond tester (gemstone tester) is a portable electronic instrument used for preliminary identification of genuine diamonds. It uses a metal probe to directly contact the surface of the gemstone, quickly detecting its physical properties. SISCO offers diamond detectors online, which are robust, durable, easy to operate, and highly sensitive, determining whether a gemstone possesses diamond characteristics. The gemstone tester are widely used in jewelry retail, recycling, processing, and personal identification.

The function of a diamond tester

The main function of a diamond checker is to quickly distinguish diamonds from common diamond-simulating materials such as glass, zircon, and crystal, effectively reducing misjudgments caused by human experience. Due to its simple operation and intuitive results, the gemstone tester is often used as the first screening tool for diamond testing, but it cannot replace an authoritative gemological certificate.

The working principle of diamond tester

When the gemstone tester machine is powered on, the probe generates a small amount of heat. When the probe contacts the surface of a diamond, the heat is quickly conducted away. The gemstone testing equipment detects this high heat conduction velocity and indicates a diamond through a beep, indicator light, or scale display. Non-diamond materials such as glass and zircon have low thermal conductivity and conduct heat slowly, so the instrument does not give a noticeable reaction.