Presidium Elec. Gem Gauge

Presidium Elec. Gem Gauge

A-Source Electronic Gem Gauge

A-Source Electronic Gem Gauge

Presidium Computer Gem Gauge

It is a Computerised Digital Gauge that helps to measure the dimensions and also estimate the weight of both loose and mounted gemstones with precision, speed and ease. Later, the data of the dimensions can be stored on a computer or printed on a paper.

Availability: In stock

Presidium Computer Gem Gauge (PGCG) is an Advance Digital Computer Gauge that does not only measures the Dimensions of the Gemstones but can also estimate the weight and identity for 9 Different Cuts.

Once we enter the weight and dimensions of a gemstone, it can also identify the gemstone by computing its S.G. Value (Specific Gravity) and by referencing its stored internal database.

  • Measuring Range is 0.0 to 25.0mm
  • The PGCG accuracy is 0.01mm which is very high in the Gemstone Industry standards
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Specifications : Presidium Computer Gem Gauge (PGCG)

  • Measuring Range is 0.0 to 25.0mm
  • The PGCG accuracy is 0.01mm which is very high in the Gemstone Industry standards
  • Attachment for high setting jewellery provided
  • No need to Dismount your Gemstones from your jewellery for measuring its carat weight
  • It can identify 74 Different Gemstones
  • Digital mm/ct display
  • Automatically shut off when idle for 10 minutes
  • Auto-magnetic shut-off when placed in carrying case
  • Clear and Visible Display for ease of reading measurements
  • Light and portable instrument that can be used anywhere
  • Computer interface display with USB (Universal Serial Bus) connectivity
  • PC connectivity for ease of recording, importing and printing measurement results

Power & Battery

1 x 3V battery (provided with product)

This product comes with a protective carrying case box that has an auto-magnetic power off when gauge is placed back in the carrying case, to help preserve battery.

Dimensions & Weight

Length: 97mm (3.82 inches)

Width: 61mm (2.40 inches)

Height:16mm (0.63 inches)


Included in your package:

• Presidium Gem Computer Gauge

• High setting jewelry attachment

• CR-2450 3V battery

• USB Cable

• Quick Guide

• QR Code Card

• Protective Box

Dimension and weight
Length Width Height weight (Grams)
Product 9.7 6.1 1.6 124.5
Package 16 9 6 499.5
  • This Product comes with a Warranty.

Calibration :

  • Not Required

Precautions :

  • Keep the tester dry. Precipitation and all types of liquids or moisture can contain minerals that will corrode electronic circuits. If your tester gets wet, remove the battery, and allow the tester to dry completely before replacing it.


  • Do not use, store or expose the gauge in dusty and dirty areas. Its moving parts can get damaged.


  • Do not use, store or expose the gauge in hot areas. High temperatures warp or melt certain plastics.


  • Do not use, store or expose the gauge in cold areas. When the gauge returns to its normal temperature, moisture can form inside the gauge.


  • Do not attempt to open the gauge other than as instructed in this handbook.


  • Do not drop, knock, or shake the gauge. Rough handling might break the fine mechanics.


  • Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the gauge.


  • Do not paint the gauge. Paint can clog the moving parts and prevent proper operation.