High Accuracy Diamond Tester Pen – Professional Jewlery Selector for Beginners & Experts Ghost USB Charger is designed for

USB Charger is designed for charging compatible Polar smartwatch models

With over 85% of the typing space of a standard desktop keyboard

Automatic Temperature Compensation (ATC): Ensures accurate readings regardless of ambient temperature

A4 size - big enough for memories

Can be folder or rolled up for storage

High Accuracy Diamond Tester Pen – Professional Jewlery Selector for Beginners & Experts Ghost USB Charger is designed forThis professional diamond tester pen is perfect for identifying genuine diamonds with precision. Its LED and audio indicators make it easy to confirm results instantly. The tool comes with a testing platform for loose stones, a carrying case for portability, and is powered by a standard 9V battery. Whether youre a jeweller, collector, or beginner, this tester ensures dependable diamond verification anytime, anywhere. Main Features: Simple Operation