Presidium Diamond and Stone Gauge

This dual-face Presidium® stone gauge accurately measures loose or set stones—even those with deep girdles or set in deep mountings. An easy-to-read dial gauge displays the conversion of millimeters and carats, and the gauge includes a jewelry attachment for measuring stone depth. A protective case is included.

---

Accuracy: 0.1mm
Range: 0–23mm
Modes: Carat, Millimeter
Brand: Presidium
Shipping weight: 12.162 ounces (344.8g)
Country of origin: Thailand