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Presidium ARI Synthetic Diamond Screener

by Dynagem
Original price £1,235.00 GBP - Original price £1,235.00 GBP
Original price
£1,235.00 GBP
£1,235.00 GBP - £1,235.00 GBP
Current price £1,235.00 GBP

ARI is developed as a handheld PRESIDIUM DIAMOND VERIFICATION INSTRUMENT™ to help identify colourless diamonds against CVD/HPHT lab-grown colourless diamonds and all types of moissanite. It is suitable for testing on both loose and mounted stones, including jewellery pieces with a closed back setting.

Through advanced proprietary technology, ARI measures the UV light absorbance ability of diamond and moissanite. With its touch screen colour LCD display, ARI provides a clear and accurate result of “Diamond”, “CVD/HPHT/Type IIa” and “Moissanite” within 3 seconds.

The product comes with a 1 Year Warranty

Powered by 3 x AAA alkaline batteries (up to 4 hours of continuous usage) or Presidium AC adaptor.



  • User-safe UV Retractable Optical Probe activates only when the tip is in contact with the diamond
  • Alert Buzzer for loss of contact between optical probe tip and diamond during testing
  • A 6-Language selection in the Graphic User Interface (GUI)
  • Battery operated with stylish ergonomic design for portability and ease of use
  • Tests on colourless diamonds and moissanite from D to J colour
  • Catered for both left-handed and right-handed users alike


  • Identifies colourless diamonds against Lab Grown CVD/HPHT diamonds and all types of moissanite, including the new “low conductivity” moissanite
  • Tests on loose or mounted diamonds in all jewellery settings, including closed-back setting
  • Replaceable Optical Probe tip technology for users to replace any worn or damaged probe tips yourself, minimizing any equipment downtime
  • Instantaneous results in 3 seconds for consecutive testing
  • Tests on polished diamonds and moissanite of all proportional cuts as small as 0.02ct 


  • Length: 190mm (7.5 inches)
  • Width: 46mm (1.8 inches)
  • Height: 25mm (0.9 inches)
  • Weight (without batteries): 60grams (0.13lb)