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Presidium Gem Tester-II Colored stone estimator is the only colored gemstone thermal tester in the industry. It provides a quick and easy way to identify diamonds and separate common colored gemstones from one another based on their thermal conductivity. Coated gemstones can also be generally tested with the PGT/CSE. The Presidium Gem Tester / Colored Stone Estimator has a retractable probe tip that ensures consistent pressure against the gemstone during testing for more reliable results.

Additional Information:

• Delivery Time: 7 to 10 Working Days

Presidium Mate-A Diamond Tester 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.

 

Features

• 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

Benefits

• 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

Power & Battery

• 3 x AAA alkaline batteries (approximately 7 hours of continuous use)

Additional Information:

• Delivery Time: 7 to 10 Working Days

Gemologis Lapis Diamond Tester is one and only rechargeable multi-tester you need to distinguish between diamond, moissanite, simulant, and metal. It features a unique ATC Solution (Ambient Temperature Compensation) which will make adjustments in accordance with the ambient temperature change to maintain its accuracy. This overcomes the shortcoming that many testers have, where the temperature of the stone affects the accuracy of the tester.

Features:

• Lightweight and comfortable grip size.
• Rechargeable lithium battery. 
• Includes lanyard, metal stone rest and charging adapter. 
• 10 hours on continuous operation.
• Retractable Tip Designed at an ergonomic testing angle
• Simple and Easy to operate. 
• Stone Type: Diamond, Moissanite, Simulant. 
• ATC Solution accounts for a different temperature of the testing environment.

 

Additional Information:

• Delivery Time: 7 to 10 Working Days

Presidium Multi Tester III is the all-in-one instrument that reliably and accurately verifies the authenticity of colorless diamonds against moissanites and other diamond simulants such as colorless sapphire, colorless spinel, cubic zirconia, zircon, etc. Showcasing a new ergonomic design with a rubberized anti-slip grip and an all-around display for easy readability, PMuT III promises greater ease of handling and reading of results whilst testing.Presidium’s Multi Tester was the world’s first tester that tests for both colorless diamonds and moissanites in a single instrument. Its measuring probes and electronics circuitry detect data from the gemstone being tested via a customized micro-controller, identifying colorless diamonds and moissanites based on their thermal and electrical properties.PMuT III 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, the PMuT III tests colorless diamonds as small as 0.02ct.
Features
Retractable thermoelectric probe tip that ensures constant pressure between probe and gemstone
Industry’s thinnest probe tip (0.6mm) for testing gemstones as small as 0.02ct
Metal alert buzzer to ensure that probe tip is in contact with gemstone during testing
Ergonomic design with rubberized anti-slip grip for better handling during testing
180-degree multi-viewing LED display
Catered to both left-handed and right-handed users alike
International voltage compatibility
Low batter indicator
Automatic power off

Benefits
Identifies metals, simulants, moissanites, and colorless diamonds instantly
Enhanced accuracy and consistency with improved functionality and usability
Accurate testing on diamonds as small as 0.02ct
Enhanced functionality and usability
Clear and visible display for ease of reading measurements
No waiting time between tests
Simple and easy to use
Light and portable for convenience
Comes with protective carrying case

Additional Information:

• Delivery Time: 7 to 10 Working Days

The only machine available that tests for Diamond, CVD/HPHT, and Moissanite. This GemTrue Veritas CVD Diamond tester features an easy to use and straightforward design. Thanks to its compact body, you can easily carry it along no matter where you’re headed. The Veritas CVD Diamond tester is powered by four regular AAA batteries. Additionally, it comes with a micro-USB input that allows you to charge it through your laptop, PC, or power bank. With its low battery warning and automatic shut off feature, this CVD diamond tester lets you take the most out of its battery life. The GemTrue Veritas CVD Diamond Tester features automatic calibration each time the tester is switched on. Thanks to this, you can enjoy perfect accuracy over and over again. This little beauty is easy to use which makes it perfect for beginning jewelers and professionals alike. As always, we have used the latest technology and hardware to make sure our tester is nothing but perfect. Our skilled team of engineers has put an enormous amount of time and effort into the research and development of the Veritas CVD Diamond tester and we are fully confident that it will meet all your expectations and demands. In fact, we are so confident of its capabilities and quality that we offer a lifetime guarantee on the whole product.

The Veritas CVD Diamond Tester is the newest tester from Gemtrue. This unique device is the only tester on the market that is capable of distinguishing between natural Diamond, CVD/HPHT, and Moissanite. If you’re looking for a pocket-sized CVD diamond tester that has it all, the GemTrue Veritas is the perfect gadget for you. This superior tester has been designed and manufactured in-house by our British engineers to ensure it meets the highest industry standards. With this beautiful gizmo at your side, distinguishing diamond, CVD-HPHT, and Moissanite has never been easier.

Additional Information:

• Delivery Time: 7 to 10 Working Days

Presidium Gemstone Indicator, the only handheld tester in the industry specifically for colored gemstones, indicates up to 31 different types of colored gems based on their thermal conductivity and even features a color input function that allows users to select from a range of 12 common colors, thereby achieving more accurate results. With an easy-to-read clear digital LED screen, this smart thermal tester also comes with the Presidium patented refined changeable probe tip, which ensures minimal equipment downtime.

The Presidium Gem Indicator is an enhanced and more convenient handheld version of the revolutionary Presidium Gem Tester/Colored Stone Estimator.

The Presidium Gem Indicator probe consists of two linked thermometers; one which is heated electronically, while the other is cooled by the gemstone being tested. The difference in temperature creates an electrical output, which is then amplified and displayed on the new digital organic LED display.

It is simple to use, easy to maintain and quick in giving you intelligent results about your colored gemstones.

Additional Information:

• Delivery Time: 7 to 10 Working Day
• Packaging Details: Box

Presidium Duo Tester is the only comprehensive tool on the market that combines two proven testing methods for gemstones. PDT differentiates diamonds from its simulants based on both their thermal conductivity and reflective indexes. Coated gemstones can also be generally tested with the PDT.
The Presidium Duo Tester comes with a probe pen that has a retractable probe tip which ensures consistent pressure against the gemstone during testing for more reliable results. With the industry's thinnest probe tip size of 0.6mm, PDT tests gemstones as small as 0.02ct.
*Does not differentiate between natural and synthetic colored gemstones.
 
Features:
Retractable thermoelectric probe tip that ensures constant pressure between probe and gemstone
Industry's thinnest probe tip (0.6mm) for testing gemstones as small as 0.02ct
Metal alert buzzer to ensure that the probe tip is in contact with gemstone during testing
Large easy-to-read analog dial with 15 colored gemstones
Digital index LED display for reading reflectivity value of the gemstone (based on a conversion from the refractive index)
Built-in diamond and simulant test discs for reference
Built-in simulant reflective properties reference chart
Built-in simulant set for calibration of reflectivity meter (optional item provided by Presidium)

Benefits:
Tests gemstones using dual tests of thermal and reflectivity properties to know more about the gemstone
Tests gemstones as small as 0.02ct
Consistent and reliable results every time
Clear and visible display for ease of reading measurements for both thermal and reflective test
No waiting time between tests
Simple and easy to use
Runs on batteries or with recommended Presidium AC adaptor
 
Power & Battery:
5 x AAA alkaline batteries (approximately 3 hours of continuous use)
AC port to be used with appropriate Presidium Power Adaptor (not included)

Additional Information:

• Delivery Time: 7 to 10 Working Days
• Packaging Details: As per customer demand

Presidium Screener-II is developed by Presidium to help screen out Type IIa colorless diamond, which is likely to be synthetic and created through chemical vapor deposition (CVD) or high pressure high temperature (HPHT) syntheses, from the natural Type Ia colorless diamond.

When subjected to this deep UV irradiation, Type Ia and Type IIa diamonds each absorb different amount of UV light. Type IIa diamonds allow deeper UV light to pass through and thus its UV light absorption ability is low. This difference in the light absorption is significant enough to aid in differentiating between colorless Type Ia and Type IIa diamonds.

Additional Information:

• Delivery Time: 7 to 10 Working Days

Available in one carat size, a set of 10 stones (color range from E-N). Comes with an attractive case and reference color weight sheet for all the stones. The unique grading display/container is made of color grading-approved white acrylic & is equipped with a built-in grading tray. All stones are laser inscribed with Color Letters for easy identification and handling.

Additional Information:

• Delivery Time: 7 to 10 Working Days