Diamond Selector II Gold Testing Kits Gem Pen Gemstone Jewelry Tester Tool,Portable Electronic Diamond Tester Pen Jewelry Selector LED for diamond, sapphire, ruby, crystal, agate, jade, gems multi gemstone precious stones hardness test tool, Diamond Selector II V2 Features: Easy operation. LED light and audio result indication. The red light will be showed and the audio indicator will ring 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 * DC 9V Battery (not include) Item size: 16 * 4 * 2.2cm (6.6 * 1.6 * 0.
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