ARI by Presidium

ARI by Presidium

5.00 out of 5 based on 1 customer rating
(1 customer review)


ARI by Presidium is a handheld diamond and moissanite screener that distinguishes colorless diamonds from CVD/HPHT lab-grown diamonds or moissanites—for loose and mounted stones

ARI_Retractable ProbeARI_CVDHPHTTypeIIa ResultARI_Diamond ResultARI_Gold Diamond RingARI_Moissanite ResultARI_White Mounted RingARI_Front ImageARI_Holding Methodreplaceable probe tip_Vertical

Product Description

Product Description

ARI is developed as a handheld PRESIDIUM DIAMOND VERIFICATION INSTRUMENT® to help identify colourless diamond against CVD/HPHT lab grown colourless diamond and all types of moissanite. It is suitable for testing on both loose and mounted stones, including jewelry 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.

Product comes with 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 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 moissanites 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 moissanites, including the new “low conductivity” moissanites
  • Tests on loose or mounted diamonds in all jewelry 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 moissanites 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)


*PRESIDIUM DIAMOND VERIFICATION INSTRUMENT is a registered trademark of Presidium Instruments Pte Ltd.

Reviews (1)

1 review for ARI by Presidium

  1. 5 out of 5


    This is good product

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Additional Information

Product comes with 1-year warranty.

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