Moissanite Diamond Tester Selector II Illuminated Jewelry Tool with Gemstones Description: Easy to use even for a new beginner. display and LED indicator. Simple operation: so easy to operate to get results, just turn on our test pen by placing the diamond in the gemstone. Compact and portable: Lightweight and compact design, fits in any purse or backpack. High accuracy: It is designed to deliver fast and accurate results. Application: for fast and safe diamond testing. Maintenance and repair: 1, the instrument is very sensitive to action, special care should be taken to protect, do not use, put it on the vagina. 2, the indicator light is very dark, indicates that the battery will run out, the battery should be replaced in a timely manner. 3, the instrument is not used for a long time, please remove the battery. 4, to accurately detect the proposed correction once a year. Specification: Color: Black Material: ABS Size: 162x42x22mm The package includes: 1X Diamond Selector II