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Uses: 3 x LR43 batteries(included) 60X microscope and UV currency detector.Adjustable LED Light for better illumination. Loupe can be adjusted on the
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The light is used for checking fluorescence in diamonds. Diamonds with fluorescence will appear cloudy when viewed with the light on. Fluorescence is not 'diagnostic' but, as with most tests, it eliminates some possibilities, opens other possibilities, suggests which other tests to carry out, and that's how gemologists identify stones.
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