This Pocket 10 x 21mm Jewellers Eye Glass Loupe features a 21mm triplet lens and contains six bright white LED lights to illuminate the field of view & stones like never before and its natural white light helps to look at inclusions, a perfect light for viewing diamonds and other gemstones. Another advantages is its achromatic & aplanatic optical glass magnifier for better viewing result, full metal body, UV light (long wave), a slide switch, and indeed has a very fine quality. Its triplet