CT Portable Electronic Diamond Tester Pen for Multi Gemstones Hardness Test Tool
On Sale
A$22.00
A$22.00
DiaTester
Handheld electronic gemstone tester that checks if your stones are real. Works with diamonds, sapphires, rubies, crystals, jade, agate, and more. Beeps and lights help you identify authenticity.
How It Works
Lights ≥9 and beeps: real diamond
Light at 9 with beep: sapphire
Lights between 6.5–7: agate
Lights between 7–8: crystal
Lights between 6–7: jade
Before testing，make sure “ready” light is on.
Hold probe at 90° to the stone,Touch back panel with index finger for diamond testing only
Don’t wear gloves
Don’t use on metal surfaces