1.Easy to use even for a new beginner
2.Emit audible sounds to give accurate reading
3.Diamond indicator will be showed if the stone is a REAL diamond (Green light)
4.Metal alert (continuous buzzing sound when user accidentally touches metal rather than stone )
5.Large / Small switch for testing diamonds +/ - 8 points
6.To emit sounds to give accurate reading
7.LCD display & LED indicator
8.If a stone is Fake crystal, a simulant such as cubic zirconium ( CZ ), will be no reaction.
Material: Metal, Plastic
Color: Black
Size: 133*41*20mm.
Power By: 1*6F22 9V battery(not included).
Weight: about 114g
