Professional Diamond Tester Pen for Novice and Expert Jewelry Diamond Buyers

Gain Express Holdings Ltd. is a high-tech enterprise that globally offers independent development, design, production, and sales of top-quality instrumentation. With years of experience in manufacturing and trading, we specialize in researching and producing high-tech & high-quality products, providing a wide range of electronic products & testing instruments to customers in North America, South America, Asia, Australia/Oceania, Europe, Africa, the Middle East, and beyond.

Our Gain Express Store offers a variety of products including CO2 Controllers, Monitors, PH Monitors, Soil PH Moisture Meters, PAR Light Meters, Geiger Counters, Loupe Magnifiers 10X, and Bluetooth Pool Water Testers. These products are designed with advanced features such as Identification Accuracy, Fluorescent Testing using ultraviolet light, Size Recognition for accurate identification of genuine diamonds, and a Compact Design with low battery consumption for extended usage.

The specifications of our products include a Probe Warm-up Time of about 25 seconds, Working Time of about 5 hours for continuous use, Suggested Working Temperature of 18°C to 30°C, Working Voltage of 1 x 9V, 6F22 battery (not included in the set) or AC adaptor 110V-240V, DC 9V (not included in the set), Size of 168 x 31 x 21mm, and Net weight of 55g.

Our reliable diamond selector is designed to be unresponsive to imitation crystals and simulants like cubic zirconia and moissanite, making it a trusted choice for retail jewelers, pawn brokers, and chain stores. Equipped with advanced technology, this diamond tester features ultraviolet light for fluorescent reaction testing, multi-level volume calibration, and audible warning sounds when the probe touches a metal surface.

The convenient features of our diamond tester include a compact design, low battery consumption, and the option to use an A/C adaptor for extended indoor use. With its accurate and precise identification capabilities, it can easily distinguish genuine "natural" diamonds and stones as small as 2pt with a single button press.

Each diamond tester comes with a vinyl pouch, testing platform for loose stones, and a comprehensive instruction manual, guaranteeing that it is brand new and unused. Choose Gain Express for top-quality instrumentation and reliable diamond testing solutions.

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