Single Arm Metal Diamond Gauge

Diamond Metal Sizing Plate;Compact only 85mm x 25mm.;17 carat sizes: 0.01; 0.02; 0.05; 0.10; 0.20; 0.25; 0.50; 0.75; 1.00; 1.20; 1.50; 1.75; 2.0; 2.5; 3.0; 3.5; 4.0;Polished finish