The Stone & Mounting Gauge (0.32 - 4 Carat, 2-11mm) is an essential tool for jewelers, gemologists, and stone setters, designed for accurate gemstone and mounting measurements. Constructed from lightweight yet durable aluminum, this gauge ensures precision and reliability when measuring loose stones and settings.

Featuring a dual measurement system, this gauge provides carat markings on one side and millimeter measurements on the other, making it versatile and easy to use. The precisely crafted holes are designed for measuring stone sizes, while the round extensions help assess mountings, ensuring compatibility between stones and settings. With 19 stone size measurements ranging from 1/32 to 4 carats in quarter-carat increments and millimeter measurements from 2 to 11mm in half-millimeter steps, this tool is indispensable for professional jewelers.

Its compact 4" x 4" (100mm x 100mm) design makes it easy to handle and store. The gauge comes in a protective plastic wallet, ensuring longevity and convenience.