An easy-to-use analog gauge for measuring gemstone dimensions.
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
- Instantly converts millimeter readings to carats for round brilliant-cut gemstones
- Measures from 0.00 to 23.00mm
- 0.02mm instrumental error, with simple zero realignment
- 0.1mm increments
- 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
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| (Click to Enlarge Image) Smooth slider mechanism |
(Click to Enlarge Image) Analog gauge |
Dimensions and Weight
- Length: 97mm (3.82 inches)
- Width: 61mm (2.4 inches)
- Height: 16mm (0.63 inches)
- Weight: 100g
(Click to Enlarge Image)
Benefits
- Measures gemstone dimensions with accuracy to 0.01mm
- Clear and easy-to-read analog display with readings in mm/ct/ring size
- Clear and visible digital display for ease of reading measurements
- Simple and easy to use
- Light and portable instrument that can be used anywhere
Measurement Range
- Gemstone (mm): 0.00mm to 23.00mm (0.1mm increment) - 1 revolution equals 10mm
- Gemstone (carat): 0.01ct to 3.65ct (0.04ct increment)
- Ring size (US size): Size 2 to Size 13
Package contents
- Presidium Dial Gauge
- High setting jewellery attachment
- Presidium Gemstone Weight Estimation Table
- User handbook
- Warranty card
- Plastic carrying case
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| (Click to Enlarge Image) Protective case |
(Click to Enlarge Image) Jewelry attachment |