RS Mizar offers reliable state-of-the-art gem testers that are simple and easy to use. Test mounted or unmounted stones. Nine volt battery and complete instructions included. Two year warranty.
Features:
Simple but precise, test diamonds in rapid succession.
Metal alert gives a long beep if metal is touched rather than stone.
Large/small switch for testing diamonds over and under eight points.
Seven second warm-up time with a 150 second shut-off alarm.
If the stone is a simulant nothing happens green light indicates diamond.
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