Features:

Easy operation.
LED light and audio result indication.
The red light will be showed and the audio indicator will sound “beep” if the stone is real diamond.
Simple calibration for stones of various sizes.
Accurate and reliable reading.
Matched with a testing platform for loose stones.
Light weight, matched with a convenient carrying case.
Detailed user manual is included in the package.

 Specifications:
Color: Black
Power supply: 1 * DC006P 9V Battery
Item size: 16 * 4 * 2cm (6.6 * 1.6 * 0.8in)
Item weight: 62g / 2.2oz
Package size: 18.5 * 5.6 * 3.5cm (7.3 * 2.2 * 1.4in)
Package weight: 157g / 5.5oz

Package including:
1 * Diamond Selector II
1 * 9V Battery
1 * Testing Platform
1 * Carrying Case
1 * User Manual in English