[Power Upgrade] The HMKIS diamond tester offers two power supply options: Type-C & 9V Power. Opting for the Type-C power supply is highly recommended for optimal performance. PLZ NOTE THIS IS Non-Rechargeable !

[Technical Upgrade]: Utilizing a brand-new production process, the equipment is less prone to damage and durable for a long time.

[Environment]The HMKIS diamond tester needs to be within the range of 50 to 95°F. Conduct the test in a windless environment.

[Jewelry Scale]: The Pocket Gram Scale Size is 5.2 x 2.99 x 0.79 inch, Gram Scale allows you to weigh a maximum capacity of a 200g and the minimum accuracy is 0.01g, to guarantee you an accurate and precise weighing session.

[Easy Use]: The HMKIS Diamond Tester Pen with just a few simple steps, anyone can easily identify whether the stone is a genuine diamond or if it is made of glass, crystal, or cubic zirconia based on the results.

[Incorrect Contact]: When we have incorrect contact, this diamond tester pen will have a flashing OR it will turn off. When you testing metal,skin,or something else.

[Moissanite & Real Diamonds]: This diamond tester can just distinguish diamond and fake diamond,but CAN NOT distinguish Moissanite & Real Diamonds