Presidium Gemstone Dial Gauge / Gemstone Dial Gauge

• Gemstone Dial Gauge - Presidium / Gemstone Dial Gauge : Presidium Dial Gauge measures from 0.0 to 23.0mm in 0.1mm divisions. The PDG features an easy-to-read millimeter and carat scale, and is only dial gauge in the industry that combines dual measurements for gemstones in millimeters with corresponding carat conversion for round brilliant-cut gemstones. PDG also contains an inner scale display for US ring size measurements. • The PDG is manufactured to the highest quality and features a patented anvil with a non-metallic lubrication-free rack and pinion technology that resist wear and tear and maintain its accuracy. • Features • 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 • Benefits