100% brand new
Easy to use even for a new beginner
Emit audible sounds to give accurate reading
Diamond indicator will be showed if the stone is a REAL diamond (Green light)
Metal alert (continuous buzzing sound when user accidentally touches metal rather than stone)
Large / small switch for testing diamonds +/ - 8 points
To emit sounds to give accurate reading
LCD display & LED indicator
If stone is Fake crystal， a stimulant such as cubic zirconium (CZ)， will be no reaction
Dimension: 16.5 x 4.0 x 2.2cm
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