Never be without an accurate and portable way to measure gemstones again! A folding gemstone gauge is a must-have tool for jewelers, appraisers, crafters, and anyone who works with gemstones. This handy tool unfolds to reveal multiple sizing scales for both round and fancy cut gemstones. Its compact design folds neatly for easy storage in your pocket or toolbox. With a folding gemstone gauge, you can quickly and confidently measure the size of any diamond or gemstone, ensuring accurate pricing, buying, and crafting decisions.

Jewelers use these accurate diamond gauges for precise measurements. The holes measure stones, while the extensions measure mountings. One side shows millimeters, the other shows carat measurements. This pocket-sized aluminum gauge measures gemstones from 0.01 to 2.1 carats, perfect for round cuts and baguettes. It includes five circular disks that fold to the size of a half-dollar coin, made of aluminum for durability.