Professional High Accuracy Diamond Tester Pen & Selector Kit

Professional Diamond Tester Pen — Accurate, Fast & Easy to Use

Whether you're a jeweler, gemologist, or a savvy buyer wanting to verify the authenticity of your gems, the Professional High Accuracy Diamond Tester Kit is your go-to tool. This sleek, pen-style diamond selector delivers reliable results in seconds — helping you confidently distinguish real diamonds from simulants and other gemstones without any guesswork.

Why Choose This Diamond Tester?

• High Accuracy Testing: Advanced thermal conductivity sensor technology ensures precise, consistent readings every time.
• Pen-Style Design: Lightweight, compact, and ergonomically designed for easy one-handed operation — perfect for use at counters, shows, or on the go.
• LED & Audio Indicator: Clear LED display and audible alert instantly signal your test results — no ambiguity, no delay.
• Wide Compatibility: Tests a variety of gemstones including diamonds, rubies, sapphires, emeralds, and more.
• Professional-Grade Kit: Everything you need is included in one comprehensive set — ideal for jewelers, appraisers, collectors, and enthusiasts alike.
• Durable Build: Constructed for long-lasting performance with a sturdy, professional finish.

Product Specifications

• Type: Diamond Tester Pen / Gemstone Selector
• Testing Method: Thermal Conductivity
• Battery: Not included (standard battery required)
• Model: Diamond Tester
• Country of Origin: Made in Mainland China

Who Is This For?

This diamond tester kit is perfect for:

• Professional jewelers and gemologists
• Jewelry store owners and appraisers
• Gem collectors and enthusiasts
• Anyone buying or selling diamonds and fine jewelry

Learn more: MedlinePlus on metal sensitivity

Frequently Asked Questions

Q: How does the diamond tester pen work?

A: The diamond tester pen uses a thermal conductivity sensor to measure how quickly heat passes through a gemstone. Since diamonds conduct heat differently than most simulants (like cubic zirconia or moissanite), the tester can accurately identify whether a stone is a genuine diamond or not. Simply touch the probe tip to the gemstone and the LED and audio indicators will display the result within seconds.

Q: Does the diamond tester kit include batteries?

A: No, batteries are not included with this diamond tester kit. You will need to supply a compatible standard battery before use. Please refer to the included instructions for the correct battery type.

Q: Can this diamond selector test other gemstones besides diamonds?

A: Yes! This professional diamond selector is capable of testing a wide range of precious and semi-precious gemstones, including rubies, sapphires, emeralds, and more, making it a versatile tool for any jewelry professional or collector.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.