Product Description

diamond gemstone tester selector II new 1 year warranted

About the item

1. brand new and unused

2. supplied with vinyl pouch, testing platform for loose stone and instruction manual

3. powered by  x1 DC 9V battery

4. Easy to use even for beginners the simple handheld tester measures the thermal conductivity of the stone and has an LCD display, LED lights and emit audible sounds to give accurate readings time after time.