About Jeweler's Loupe

About Jeweler's Loupe


Perhaps the most important tool in gemology is that of the jewelers loupe...pronounced "LOOP". This most important piece of equipment...in the right hands...can serve as the foremost identification and grading tool.
There are two important factors about making the decision regarding which loupe is right for you. The first is the size of the lens. Most good quality loupes will have an 18mm lens in 10x or 10 power. This is the standard for most gemologists...however, larger and smaller size lenses are available. And loupes in the 20x or 30x are available....but not worth much because the lenses have to be so small at the higher magnification that they are not much use. So a 10 x 18mm loupe is the first consideration.