This is a 30x lighted loupe with 21mm Triplet Optical Glass Lens have six bright white LED lights around the lens to illuminate the field of view
GSTK-785 30X Magnification Jeweler Loupe Magnifier w/ 6 LED light 21mm Lens Gem Gemstone Tool Tester
30X Times Glass 21mm Metal Folding Recognition Precision Diamond
30x Magnifying Glass
Jeweler's LOUPE 30x 30 Power 21mm Jewelers Jewelry - Singapore
JEWELERS Magnifying LOUPE 30x 30 Power 21mm Triplet Lens
Jeweler's Loupe
Jewelers Loop
21mm 30x Magnifying Glass Jewellers Loupe Jewellery Eye Lens
Vintage Magnifier Loupe With a Stand Compact Fitrite Skeleton Eye