If stone is Fake crystal, there will be no beeping sound, no red lamps light on,It will indicate whether your stone is a genuine diamond or fake.
-LCD display & LED indicator.-It is designed for quick, precise, and safe diamond testing.
-LED light and audio result indication.
- Simple calibration for stones of various sizes.
- Accurate and reliable reading.
- Light weight, matched with a convenient carrying case.
- Matched with a testing platform for loose stones.
-Power supply: 1 * DC006P 9V Battery(not included)
-Item size: 16 * 4 * 2cm
What's in the box:
1 X Portable Led Audio Gemstone Jewelry Tester Tool
1 X Pouch
1 X Testing Platform