After the eye and the brain, the 10x Loupe (or "hand lens") is the instrument most used by gemologists. It is used to inspect the interior and exterior of a gemstone, and is the primary instrument used for clarity grading of diamonds. This 10x 21mm triplet loupe from Hobby Tool Supply uses 3 lenses to provide a sharp image with little to no spherical aberration/distortion. Thanks to the case's eyelet, the loupe can be attached to a chain or string.
After the eye and the brain, the 10x Loupe (or "hand lens") is the instrument most used by gemologists. It is used to inspect the interior and exterior of a gemstone, and is the primary instrument used for clarity grading of...
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