Pro Grade Diamond Tester for Jewelers with LCD Display and LED Indicator Fast Safe Diamond Selector II Pen Tool for Novice and Expert Easy to Use Includes 9V Battery Portable Black

Professional Diamond Tester Pen with LCD display and beeps
✔️ Fast, safe testing with LCD, LED indicators, two test modes

This handheld diamond tester is a pen-style device jewelers use to quickly verify genuine diamonds. It features an LCD display, LED indicator, audible beeps, and two testing modes using large and small switches. This single-unit tester ships with a leather pouch case, testing platform, user manual, and a DC 9V battery.

✅ Diamond tester with LCD display and LED indicator for clear results
✅ Bare hands operation: two-handed use with metal panel contact
✅ Beep at startup signals initialization and adjustable light count
✅ Operating range 10-35°C and humidity below 80% for best results
✅ Includes tester, leather pouch, testing platform, user manual, 9V battery

💡 What is a diamond tester pen used for in jewelry work? A handy tool for quick checks of stone authenticity during sales, appraisals, and repairs. - handy for quick checks of authenticity in-store - distinguishes genuine diamonds from cubic zirconia or crystal - simple, pocket-sized device that requires minimal setup

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