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Diamond Testers

Diamond Detective Tester, Automatic and manual Operation, Accurate in warm and cool temperature, 12 LED display gives more information, accurately tests small or large stones, Fast warm up time 6 seconds...
JN Jewellery's no power pack or spring clips needed and it works off a 9-volt battery. the Moissanite terminator ii has dual test voltages to insure 100% accuracy. until recently and diamond simulants could be distinguished from genuine diamond using a thermal tester like the mizar diamond Detect..
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