Professional Diamond Tester Pen – With 9V Battery

Fast & Accurate Testing
Diamond Selector II quickly and safely identifies real diamonds with an LCD display, LED indicator, sound alerts, and large/small switches for precision.

Bare Hand Use Required
Use both bare hands — one to hold the stone, the other to hold the tester while touching the conductive panel. Gloves or one-handed testing will give false results.

Beeping on Startup
Beeping at startup means the device is initializing. Adjust the light level using the rear guide and knob based on room temperature and diamond size.

Metal Detection Alert
A high-pitched sound during metal testing is normal due to thermal conductivity being similar to diamonds.

Easy to Use
No expertise needed — just turn it on, gently press the tip against the stone. No beep = fake or non-diamond.

Important Notes
Works best in 10–35°C, humidity <80%, no wind. Do not wear gloves. Always touch the back panel during testing. Turn off after use to save battery.

What’s Included

• 1× Diamond Tester

• 1× Leather Case

• 1× Testing Platform

• 1× User Manual

• 1× 9V Battery (Included)