

GemOro's SUREgauge Xl digital pocket-sized gauge is perfect for measuring mounted stones, high-set stones and unmounted stones and pearls. It has a measuring range of 0-25mm (0-1") with a precision accuracy of 0.01mm (0.0005"). There are three measuring surfaces on the SUREgauge XL for easy measuring; use the locking screw to hold a setting measurement. Includes gem weight estimating conversion book, one LR44 (357) cell and high setting attachment pin all supplied in convenient protective storage case.