Features: 

--This is Electronic Diamond Tester a portable electronic device for distinguishing real diamonds from other simulated stones.
--It is designed for quick, precise, and safe diamond testing, simple calibration for stones of various sizes.
--With LED light and audio result indication.
--Accurate and reliable reading, with a metal alert, a testing platform for loose stones.

Specifications:

• Color: Black
• Dimensions: 158.7*41.2*21mm
• Testing Capability: Diamonds, Diamond simulation (e.g. CZ), Metal
• Auto Off: " N/A
• Initial warm-up: ~ 20 sec.
• Indicator: Audio and LED lamps
• Power: 1 x 9V Battery (included)

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Package Included:

1 x Diamond tester(battery included)