Generic New Illuminated 40x 25mm Jeweler's Loupe with LED Light Brand New in Box, Never Used Illuminated Jeweler's Loupe with 30X Magnifying Glass with LED light. The perfect eye loop for viewing jewelry hallmarks, proofs, stamps, coins etc. The shape of this loupe allows it to rest comfortably in the eye socket. This has become the standard style of loupes and is excellent for any application where magnification is needed.