The gems to be tested must be clean, dry, and at room temperature. This diamond tester has a highly compact design, which can perform fast, accurate, and safe diamond testing, which is very suitable for carrying with you when buying diamonds.
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This is Electronic Diamond Tester a portable electronic device for distinguishing real diamonds from other simulated stones. 1 x Diamond
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This diamond tester has a highly compact design, which can perform fast, accurate, and safe diamond testing, which is very suitable for carrying with you when buying diamonds. This diamond tester will indicate whether your diamond is genuine or fake. You can quickly and easily understand the diamond data. The LED light and audio indication of this diamond tester test the true and false results of the diamond.
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Portable Diamond Tester Selector Illuminated Jewelry Gemstone Testing Tool Kit