Diamond Tester Pen, High Accuracy Jewelry Diamond Tester, Professional Diamond Selector for Novice and Expert

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This diamond selector remains unresponsive to materials like imitation crystals, or simulants like cubic zirconia, moissanite, and lab-grown diamonds, upon contact with the surface. It is the easiest answer for the vast majority of retail jewelers, pawn brokers, and chain stores when faced with the decision of which diamond selector to buy.

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[Initialization] After powering on, turn the wheel to keep 4 green lights on to finish the Initialization. Otherwise you will get inaccurate results.

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How To Test Diamond Turn on the switch. Make sure only 1 light is lighting up on the scale. Wait few seconds for the probe to heat up until Lamp on ready OK.

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