Well-received gemstone tester

1. Material: Metal, Plastic
2. Color: Black (shown as the pictures)
3. Size: 13.5 x 4 x 2cm/5.31*1.57*0.79inch
4. Powered by DC 9V battery x 1 ( Not included ) 5. Easy to use even for a new beginner
6. Emit audible sounds to give accurate reading
7. Diamond indicator will be showed if the stone is a REAL diamond (Green light)
8. Metal alert (continuous buzzing sound when user accidentally touches metal rather than stone )
9. Large / Small switch for testing diamonds +/ - 8 points
10. To emit sounds to give accurate reading
LCD display & LED indicator
11. If a stone is Fake crystal, a simulant such as cubic zirconium ( CZ ), will be no reaction