Diamond Tester Pen, Professional Diamond Tester Pen Jeweler Tool for Novice and Expert (Non-Rechargeable)

Experience quick, reliable diamond testing with our Professional Diamond Tester Pen — a must-have tool for jewelers, collectors, and anyone who loves gemstones. Designed for both beginners and experts, this compact pen delivers fast and accurate results to help you distinguish real diamonds from imitations with confidence. Simply power on, touch the probe to the stone, and let the clear indicator show your result in seconds. Lightweight, portable, and easy to use — it’s the perfect addition to your jewelry toolkit.

• ‌🔍 Accurate & Reliable Testing：Built with advanced thermal conductivity technology, this tester provides precise identification between real diamonds and fake stones such as cubic zirconia or crystal.
• ⚡ Fast Results in Seconds：No more guessing — get clear results instantly with LED light indicators and audible alerts, designed for effortless testing even for first-time users.
• 🎯 Easy to Use for Beginners & Professionals：Simply switch on, wait for the ready signal, and test — no calibration required. Perfect for jewelers, gem enthusiasts, or anyone verifying diamond authenticity.
• 💼 Portable & Travel-Friendly Design：Compact and lightweight, this pen fits easily into your pocket or jewelry case, making it ideal for on-the-go testing at markets, shows, or home.
• 🔋 Battery Powered：No charging needed, ensuring dependable performance whenever you need it.