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Full view of the blue Presidium ARI Diamond Tester with display showing ARi.
Close-up of the Presidium ARI display screen showing CVD/HPHT/Type IIa synthetic diamond warning.
Close-up of the Presidium ARI display screen, indicating the tested stone is a Diamond.
Bottom view of the Presidium ARI's tip resting on the metal calibration pad.
Bottom view of the Presidium ARI testing a diamond mounted in a silver or platinum engagement ring.

Presidium ARI Diamond Tester

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

Length: 190mm (7.5 inches)

Width: 46mm (1.8 inches)

Height: 25mm (0.9 inches)

Weight (without batteries): 60g (0.13lb)

Operating Temperature: 18°C – 27°C (65°F – 80°F)

Storage Temperature: 10°C – 51°C (50°F – 124°F)

Air Relative Humidity: 35 – 65%

Power & Battery: 3 x AAA alkaline batteries (up to 4 hours of continuous usage) or AC adaptor

Standby time: 10 minutes from the last measurement

Important note: USB cable included is an alternative means to power the tester via AC, aside from batteries. The tester is NOT able to hold a charge.

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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.

 

Features

  • 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
  • Optical Tip assessment tool in settings

 

Benefits

  • 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

About Us

About Us

JYBS(Jinyuanbao) is a 35-year-old company with a full range of jewellery tools, offering professional services and a perfect quality control system.
Only to be a trustworthy tool home for jewellery masters at home and abroad.

The products are exported to 40+ countries and regions with over 30,000 products and the export value reached US$6.7 million in 2021.
Since 1988, Jinyuanbao is a professional jewellery tools and equipment supplier based in Guangzhou, China.

We offer a wide range of jewellery tools and equipment such as diamond testers, punching machines, polishing machines, setting tools, jewellery cutting tools, abrasive tools,
polishing tools, ring setting and stretching machines, faceting machines, engraving machines, casting machines, and measuring instruments.

We have supplied many prestigious American and European customers with products of consistent quality.
Our products are popular with our customers due to their superior quality and affordable prices.

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