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.
If stone is Fake crystal, a simulant such as cubic zirconium ( CZ ), will be no reaction.
Powered by DC 9V battery x 1 (Not included ).
1 x Diamond Selector Tester