The Presidium Refractive Index Meter II is a desktop digital tester that is used for the accurate measurement of broad-range R.I. values, from 1.000 to ~3.000. The PRIM II can instantly identify diamonds, moissanites, and other colored gemstones without the inconvenience of using messy RI liquids. It comes with a complementary proprietary software to help users verify the type of stone based on various gemstone properties.

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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 sales@presidium.com.sg or marketing@presidium.com.sg. 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.

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