21mm Jeweler Loupe 10x Magnifier with LED and UV Light
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.
High-Powered 10X Magnification: This Illuminated Loupe features a 10X magnification power with a 21mm diameter optical glass lens, perfect for
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