Category: Bundles

Bundle - ARI by Presidium & Diamond Mate-A

SGD $1,649.00

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Elevate your diamond identification capabilities with the ARI by Presidium, the trusted Diamond Verification Instrument®. When paired with the Presidium Diamond Mate Tester (PDMT-A), you gain a powerful and efficient toolset for quick and reliable diamond screening. Invest in the ARI and PDMT-A combination today and experience the convenience and reliability of industry-leading diamond identification technology.

Here's how you can use them in just two simple steps:

Step 1: Use the Diamond Mate-A

The Presidium Diamond Mate Tester (PDMT) has a retractable probe tip that ensures consistent pressure against the gemstone during testing for more reliable results. With the industry’s thinnest probe tip size of 0.6mm, PDMT tests diamonds as small as 0.02ct. Test results are instantly indicated by an LED light and continuous audible beep

Step 2: Use the ARI by Presidium

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 including jewelry pieces with a closed back setting. ARI provides a clear and accurate result of "Diamond", CVD/HPHT/Type IIa" and "Moissanite" in 3 seconds. 

Optical Probe TIp for ARI

SGD $69.00

Extra Rechargeable Battery for PDMT-C

SGD $20.00


SGD $20.00


SGD $35.00
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ARI by Presidium:

  • 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

Presidium Diamond Mate-A:

  • Retractable thermoelectric probe tip for enhanced accuracy that ensures constant pressure between probe and gemstone
  • Industry’s thinnest probe tip (0.6mm) for testing diamonds as small as 0.02ct
  • Metal alert buzzer to ensure that probe tip is in contact with stone during testing
  • No waiting time between tests
  • Clear and easy-to-read LED display
  • Rechargeable batteries
  • Low battery indicator
  • Low battery consumption


ARI by Presidium:

  • 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

Diamond Mate-A: 

  • Verifies authenticity of diamonds instantly
  • Tests both polished and unpolished gemstones
  • Tests diamonds as small as 0.02ct
  • Consistent and reliable results every time
  • No waiting time between tests
  • Clear and visible display for ease of reading measurements
  • Simple and easy to use
  • Light and portable for convenience
  • Comes with protective carrying case

How It Works