Presidium Gem Computer Gauge PCGC

The Presidium Gem Computer Gauge (PCGC) delivers professional-grade gemstone measurement, weight estimation, and identification in a single bench instrument. Measuring to an accuracy of 0.01mm — ten times the precision of a standard analog dial-style gauge — it is indispensable for diamond handlers, gemologists, and appraisers who need to measure, sort, and match loose or set stones with confidence.

The gauge operates as a fully standalone tool: enter measurements directly via the onboard keypad to estimate gemstone weights and identify unknown stones. For expanded capability, connect the PCGC to a Windows-based PC via the included USB cable and use the full software suite loaded on the included mini CD-ROM. The CD adds data for an additional 59 gemstones beyond the 74 built into the gauge, bringing the total to 133 gemstones across 9 shapes. The software also enables advanced data manipulation, storage, and the ability to create weight estimation profiles for custom gemstone types.

Additional functions include a Specific Gravity Dictionary for retrieving the S.G. value of any stored gemstone by name, a Gemstone Estimator that identifies unknown stones from entered measurements and weight, and a direct carat conversion function for round brilliant cut diamonds. The Auto-Magnetic Power-Off feature activates automatically when the gauge is placed in its carrying case, preserving battery life.

Features

• Measures to 0.01mm resolution — ten times the accuracy of analog dial-style gemstone gauges
• Weight estimation software built into the gauge covers 74 gemstones and 9 shapes
• Mini CD-ROM adds data for 59 additional gemstones (133 total) and expanded data storage and manipulation tools
• Supports weight computation from direct measurement or manual keypad entry
• USB interface for connection to Windows 2000 and later PCs
• Direct carat conversion for round brilliant cut diamonds
• Specific Gravity Dictionary: retrieve S.G. values by entering the gemstone name
• Gemstone Estimator: identify unknown stones by entering measurements and weight
• Hardened measurement platform
• Auto-Magnetic Power-Off activates when gauge is placed in carrying case
• Battery operated — one CR-2450 battery included

Specifications

What's Included

• Presidium Gem Computer Gauge (PCGC)
• High setting attachment
• USB cable
• Mini CD-ROM with expanded gemstone software (133 total gemstones)
• Instruction booklet
• CR-2450 battery
• Storage and carrying case

Notes

• PC software requires Windows 2000 or later; mini CD-ROM must be loaded separately to access expanded gemstone data and advanced storage features.
• Auto-Magnetic Power-Off is activated by placing the gauge in its carrying case — no manual power switch action required.

California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.