This hand held gauge is easy to use and convenient. The holes in the gauge are used to measure stones, while the extensions are used to measure mountings. Makes comparing 2 similar sizes easy. One side shows, millimeters, the other side shows the corresponding carat measurements. Measures 2mm-11mm in .5mm increments.
- Measure and compare round gemstones and mountings
- Measures 2-11mm in .5mm increments
- 19 sizes total
- Measures in carats and millimeters