This round aluminium stone gauge is an indispensable tool for professional goldsmiths, jewellery designers, and workshops who need precise gemstone measurements. The gauge features holes for quick and accurate determination of stone diameter and pins for checking settings – a practical help in daily work.

The gauge has measuring scales on both sides:

• One side measures in millimetres from 2–11 mm, giving you a clear overview of the stone size.
• The other side measures in carats from 1/32 to 4 ct., allowing you to get an indication of the weight.

The lightweight aluminium design makes the tool easy to handle and durable enough for everyday use.

• Round aluminium stone gauge – ideal for the goldsmith’s workshop
• Measurement in both mm (2–11 mm) and carat (1/32–4 ct.)
• Holes for diameter measurement
• Pins for checking fit when setting stones
• Lightweight and durable design for daily use