Presidium® Dial Gauge

Measures from 0.0 to 23.0mm. Accuracy: 0.1mm / Tolerance: 0.02mm with simple zero realignment. Analog gauge with mm/ct/ring size display. Patented anvil. Smooth slider mechanism. Portable and lightweight. Compact protective case included. Attachment for high setting jewelry provided. Presidium Gemstone Weight Estimation Table provided. Instantly converts millimeter readings to carats for round brilliant-cut gemstones. Measures gemstone dimensions with accuracy to 0.01mm. Clear and easy-to-read analog display with readings in mm/ct/ring size. Light and portable instrument that can be used anywhere. Made in Singapore.