Conducting Optical Test on Gemstones Using Presidium Duo Tester (PDT II)

The Presidium Duo Tester II (PDT II) is the only comprehensive tool on the market that combines two proven testing methods for gemstones. PDT II differentiates diamonds from its simulants based on both their thermal conductivity and reflective indexes. Coated gemstones can also be generally tested with the PDT II. With the industry’s thinnest probe tip size of 0.6mm, PDT II tests gemstones as small as 0.02ct.

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Presidium Instruments Pte Ltd, incorporated in 1979, is the world’s leading manufacturer of gemological instruments that test and measure diamonds and gems, for the diamond and gemstones industries. We are the world’s first brand to launch groundbreaking gemological instruments, including Diamond Verification Instruments, Diamond and Moissanite Testers, Colored Gemstone Testers, Scales and Gauges, and Engraving Machines.

For inquiries, please email [email protected] or [email protected]. Our offices located at:
Unit 7, 207 Henderson Road, Singapore 159550
Appointment Line: + 65-6771-9760

As part of our safety measures in line with the pandemic, an appointment is required before coming into our office. Walk-ins are currently not allowed.

Website: https://presidium.com.sg/
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