Measures gemstones from melee to 25mm by 0.01mm and calculates the weight of a variety of gemstones

Tables can be used with any diamond gauge that reads in mm

The only caliper-style diamond gauge that reads in millimeters

Manufactured by Micromat, the company that manufactured the Leveridge Gauge

Presidium quality, easy to read digital readout

Easy to read and use analog gauge with Presidium quality

Pocket gauge measures stones from 0-20mm by 0.01mm

Estimates the weight of a variety shapes and types of gemstones with high precision, consistency, speed, and ease

Verify the accuracy of your gemstone gauge