Oval Gauge for Stones

Reverse side is metric carat measurement.

Capacity:
Diamond - 0.02 to 6 carats
Pearl - ½ to 40 grains

K&B Diamond and Stone Gauge.
Measures loose or mounted stones from 3 points to 4 carats.
Birthstone chart on reverse.

Carbide tipped measuring faces parallel, ground and lapped.
Stainless steel spindle for rust prevention, heat resistant grips and calibration is laser etched.

With CM conversion only

837 With Clip