Perform an initial diamond screening with a handheld tester that also warns about contact with metal.
Features and specifications
- Thermal-conductivity screening.
- Metal-contact alert.
- Low-battery indication.
Who it suits
Useful for someone who understands the probe technique and needs a first screening step before more detailed testing. Clean contact and correct positioning are important around small mounted stones.
Before you choose
A thermal result alone cannot reliably resolve every diamond simulant, including moissanite, or determine natural versus laboratory-grown origin. Do not treat an indicator as a grading report or an appraisal.
Related Gold Guide: why diamond origin matters.
Check the selected model, seller, included accessories, and current price on Amazon before ordering.
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