10 x 21mm Mini Folding Illuminated Loupe Jewelry Magnifier Pocket with LED Light, for Gems Jewelry Jewelers Eye Rocks Stamps Coins Watches Hobbies Antiques Gems

The UV light is used for checking fluorescence in diamonds. Diamonds with fluorescence will appear cloudy when viewed with the UV 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.

Added Features
* ideal for inspecting diamonds, gemstones, watches, and many more applications
* Aplanatic - Corrected for spherical aberrations, for larger field of view from side to side
* Achromatic - Corrected for color distortions, for true color viewing
* Triplet Lens - Three separate lenses bonded together, vastly superior to doublets and single lens magnification
* Emits a cool bright light that produces bright image and good visibility, even in poor light conditions
* Powerful precision glass lens brings fine micro-detail into view
* Direct illumination eliminates shadows
* Made with the finest quality optics and with top quality metal cases

Specifications

Magnification: 10x
Len Diameter: 21 mm (0.82 inch)
2-IN-1 with 6 LED Light and UV light
Achromatically & Alpabetically correct loupe
Push Switch to turn LED light On/Off
Jeweler Quality
Foldaway design
Two Switch: 1 for LED light, 1 for UV light
Power: 3 x LR927 button cell batteries (included)
Item Size: approx. 1.93 x 1.10 x 0.94 inch (49 x 28 x 24 mm)
Weight: approx. 2oz (54 g) with batteries included

Set Included

1 x Jeweler Triplet Loupe (10x)
1 x Synthetic Leather case
1 x Key for screw latch
3 x LR927 button batteries