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Presidium Instruments Gem Tester II PGT II with Assisted Thermal Calibration ATC for Identifying Diamonds/Moissanites and Common Colored Gemstones
US Store
Presidium

Presidium Instruments Gem Tester II PGT II with Assisted Thermal Calibration ATC ...
4.2

300+ bought

ZMW 9092

Presidium Multi Tester III PMuT III All-in-One Instrument for Testing Diamonds, Moissanites and Diamond Simulants
US Store
Presidium

Presidium Multi Tester III PMuT III All-in-One Instrument for Testing Diamonds, ...
3.7

50+ bought

ZMW 7110

Presidium Multi Tester III PMuT III All-in-One Instrument for Testing Diamonds, Moissanites and Diamond Simulants
US Store
Presidium

Presidium Multi Tester III PMuT III All-in-One Instrument for Testing Diamonds, ...
3.7

50+ bought

ZMW 7110

Presidium Multi Tester III PMuT III All-in-One Instrument for Testing Diamonds, Moissanites and Diamond Simulants
US Store
Presidium

Presidium Multi Tester III PMuT III All-in-One Instrument for Testing Diamonds, ...
3.7

50+ bought

ZMW 7110

Presidium Diamond Mate C PDMT-C Diamond Tester | Professional Portable Diamond Authenticity Testing Tool | Diamond and Jewelry Thermal Conductivity Tester with Rechargeable Battery and AC Adapter
US Store
Presidium

Presidium Diamond Mate C PDMT-C Diamond Tester | Professional Portable Diamond ...
4.2

50+ bought

ZMW 4670

Presidium Multi Tester III PMuT III All-in-One Instrument for Testing Diamonds, Moissanites and Diamond Simulants
US Store
Presidium

Presidium Multi Tester III PMuT III All-in-One Instrument for Testing Diamonds, ...
3.7

50+ bought

ZMW 7110

Presidium Instruments Gem Indicator PGI Handheld Tester for Identifying Diamonds and Common Colored Gemstones
US Store
Presidium

Presidium Instruments Gem Indicator PGI Handheld Tester for Identifying Diamonds ...
3.6

ZMW 10160

PRESIDIUM ELECTRONIC GEMSTONE DIAMOND GEM GAUGE PEGG by Presidium
US Store
Presidium

PRESIDIUM ELECTRONIC GEMSTONE DIAMOND GEM GAUGE PEGG by Presidium

ZMW 9367

Presidium Diamond Mate C PDMT-C Diamond Tester | Professional Portable Diamond Authenticity Testing Tool | Diamond and Jewelry Thermal Conductivity Tester with Rechargeable Battery and AC Adapter
US Store
Presidium

Presidium Diamond Mate C PDMT-C Diamond Tester | Professional Portable Diamond ...
4.2

ZMW 4670

Presidium Adamas Diamond and Moissanite Tester | Worlds First Tester with Replaceable Micro Probe Tip | for Authenticating Diamonds with Included AC Adapter
US Store
Presidium

Presidium Adamas Diamond and Moissanite Tester | Worlds First Tester with ...
3.6

ZMW 13210

Presidium Duo Tester PDT II Diamond and Colored Gemstone Tester | Thermal Conductivity and Reflectivity Testing | Assisted Thermal Calibration ATC | Professional Jewelry Testing Tool
US Store
Presidium

Presidium Duo Tester PDT II Diamond and Colored Gemstone Tester | Thermal ...
3.1

ZMW 12905

Presidium Adamas Diamond and Moissanite Tester Authenticating Diamonds
US Store
presidium

Presidium Adamas Diamond and Moissanite Tester Authenticating Diamonds

ZMW 13317

PMUT III Presidium Multi Tester - Signature Required on Delivery FEDEX
US Store
presidium

PMUT III Presidium Multi Tester - Signature Required on Delivery FEDEX

ZMW 9227

PRESIDIUM GEM COMPUTER GAUGE FOR DIAMONDS AND GEMSTONES PEGCG - NEW!
US Store
presidium

PRESIDIUM GEM COMPUTER GAUGE FOR DIAMONDS AND GEMSTONES PEGCG - NEW!

ZMW 16577

Presidium Gem Indicator PGI - Handheld Tester
US Store
Presidium

Presidium Gem Indicator PGI - Handheld Tester
4

ZMW 9946

5% OFF
PRESIDIUM ADAMAS DIAMOND AND MOISSANITE TESTER
US Store
presidium

PRESIDIUM ADAMAS DIAMOND AND MOISSANITE TESTER

ZMW 15316 16115

PRESIDIUM ARI DIAMOND VERIFICATION SYSTEM TESTS DIAMOND LAB CVD HPHT TYPE IIa
US Store
presidium

PRESIDIUM ARI DIAMOND VERIFICATION SYSTEM TESTS DIAMOND LAB CVD HPHT TYPE IIa

ZMW 35179

Presidium Adamas Diamond and Moissanite Tester | Worlds First Tester with Replaceable Micro Probe Tip | for Authenticating Diamonds with Included AC Adapter
US Store
Presidium

Presidium Adamas Diamond and Moissanite Tester | Worlds First Tester with ...
3.6

ZMW 13210

2% OFF
Presidium Gem Tester PGT II Complete Unit and Replacement Probe Pen PS2-2 for PGT II and PDT II Bundle
US Store
Presidium

Presidium Gem Tester PGT II Complete Unit and Replacement Probe Pen PS2-2 for PGT ...

ZMW 10976 11197

Presidium Instruments Gem Indicator PGI Handheld Tester for Identifying Diamonds and Common Colored Gemstones
US Store
Presidium

Presidium Instruments Gem Indicator PGI Handheld Tester for Identifying Diamonds ...
3.6

ZMW 10160

SAM by Presidium | Advanced Diamond and Moissanite Tester with Thermoelectrical Probe | Detects Low Conductivity Moissanite | 0.0110 Carat Diamond Testing Tool
US Store
Presidium

SAM by Presidium | Advanced Diamond and Moissanite Tester with Thermoelectrical ...
4.3

ZMW 9855

Presidium Adamas Diamond/Moissanite Tester Package USB Charger and Optional Replacement Tip
US Store
Presidium

Presidium Adamas Diamond/Moissanite Tester Package USB Charger and Optional ...
3.4

ZMW 13210

PRESIDIUM GEM TESTER II COLORED STONES DIAMOND NEW MODEL
US Store
presidium

PRESIDIUM GEM TESTER II COLORED STONES DIAMOND NEW MODEL

ZMW 11810

Presidium Diamond Mate A PDMT-A Diamond Tester | Professional Handheld Diamond Authenticity Tester | Thermal Conductivity Diamond & Simulant Testing Tool with Metal Alert & Low Battery Indicator
US Store
Presidium

Presidium Diamond Mate A PDMT-A Diamond Tester | Professional Handheld Diamond ...
4

ZMW 4060

Presidium Diamond Mate A PDMT-A Diamond Tester | Professional Handheld Diamond Authenticity Tester | Thermal Conductivity Diamond & Simulant Testing Tool with Metal Alert & Low Battery Indicator
US Store
Presidium

Presidium Diamond Mate A PDMT-A Diamond Tester | Professional Handheld Diamond ...
4

ZMW 4060

Presidium Instruments Gem Tester II with Assisted Thermal Calibration for Identifying Diamonds/Moissanites and Common Colored Gemstones
US Store
Presidium

Presidium Instruments Gem Tester II with Assisted Thermal Calibration for ...
3.9

ZMW 9012

Presidium Gem Computer Gauge PGCG | Digital Gemstone Caliper with Carat Weight Estimation, 0.01mm Precision, 9 Cut Identification, USB PC Connectivity, Portable Jewelry Measuring Tool
US Store
Presidium

Presidium Gem Computer Gauge PGCG | Digital Gemstone Caliper with Carat Weight ...
4

ZMW 11426

DIAMOND TESTER- ELECTRONIC GEMSTONE
US Store
Presidium

DIAMOND TESTER- ELECTRONIC GEMSTONE

ZMW 9733

Presidium Gemstone Dial Gauge, Presidium PDG Gemstone Dial Gauge by Presidium
US Store
presidium

Presidium Gemstone Dial Gauge, Presidium PDG Gemstone Dial Gauge by Presidium

ZMW 5585

Gem Indicator PGI Gem Tester
US Store
Presidium

Gem Indicator PGI Gem Tester
3.3

ZMW 10160

12% OFF
Presidium Electronic Gemstone Gauge PEGG | Digital Jewelry and Diamond Measuring Tool for Accurate Gemstone Dimensions and Carat Weight Estimation, Touch Button Zeroing, High-Precision Display
US Store
Presidium

Presidium Electronic Gemstone Gauge PEGG | Digital Jewelry and Diamond Measuring ...
3.5

ZMW 9367 10648

Presidium Synthetic Diamond Screener II SDS II | Portable Desktop Diamond Tester for Lab-Grown vs Natural Diamonds | Detects CVD & HPHT | Tests Melee Stones from 0.02 Carat | USB & Battery Powered
US Store
Presidium

Presidium Synthetic Diamond Screener II SDS II | Portable Desktop Diamond Tester ...
3.5

ZMW 19767

Presidium Gem Indicator
US Store
Presidium

Presidium Gem Indicator
5

ZMW 9946

PRESIDIUM Synthetic Diamond Screener II SDS II Tester CVD HPHT D to J Color
US Store
presidium

PRESIDIUM Synthetic Diamond Screener II SDS II Tester CVD HPHT D to J Color

ZMW 19775

Presidium Gemstone Dial Gauge PDG | Analog Gem Measuring Tool with Carat Conversion for Diamonds, Ring Size Scale, 023mm Precision, Portable Jewelry Measuring Instrument
US Store
Presidium

Presidium Gemstone Dial Gauge PDG | Analog Gem Measuring Tool with Carat Conversion ...
4.6

ZMW 6073

PRESIDIUM Gem Tester II Colored Stone and Diamond/Moissanite Tester - NEW IN BOX
US Store
presidium

PRESIDIUM Gem Tester II Colored Stone and Diamond/Moissanite Tester - NEW IN BOX
4.3

ZMW 9964

Presidium Diamond Tester Kit Multi Tester III PMUT III Moissanite Jewelry Testing Instrument
US Store
Presidium

Presidium Diamond Tester Kit Multi Tester III PMUT III Moissanite Jewelry Testing ...
3.4

ZMW 7475

Gem Indicator PGI Gem Tester
US Store
Presidium

Gem Indicator PGI Gem Tester
3.3

ZMW 10160

Explore About Presidium & Its Products

Presidium is a brand that specializes in manufacturing diamond testing, colored gemstone testing, and measurement equipment.

Presidium was started in 1979 in Singapore.

The brand's first product was a handheld diamond tester.

In 1990, Presidium moved its headquarters to Hong Kong.

Presidium received the prestigious ISO 9001 certification in 1996.

Today, Presidium has a global presence, with distributors in more than 70 countries.

Brands Similar to Presidium

GemOro

GemOro is a brand that produces diamond and gem testing equipment.

GIA

GIA is a nonprofit organization that specializes in diamond grading and gemological research.

Sarine

Sarine is a technology company that develops and manufactures equipment for the diamond industry.

Top Trending & High Rated Products of Presidium

Diamond Tester

A handheld device that tests the authenticity of diamonds.

Diamond and Moissanite Tester

A device that differentiates between diamonds and moissanite, a diamond simulant.

Colored Gemstone Tester

A device that tests the authenticity of colored gemstones.

Common Questions Asked by Customers About Presidium & Its Products

What is a diamond tester?

A diamond tester is a device that tests whether a diamond is real or fake. It works by measuring the thermal conductivity of the stone.

How accurate are Presidium diamond testers?

Presidium diamond testers are highly accurate, with a margin of error of less than 0.02%.

What is a moissanite tester?

A moissanite tester is a device that differentiates between diamonds and moissanite, a diamond simulant. This is helpful because moissanite is often used as a cheaper alternative to diamonds.

Can a Presidium gemstone tester differentiate between different types of gemstones?

No, a Presidium gemstone tester can only test whether a stone is a natural gemstone or a simulant. It cannot differentiate between different types of gemstones.

Where can I buy Presidium diamond testers?

Presidium diamond testers are sold by a variety of jewelry supply retailers online, as well as on Amazon and eBay.