PRESIDIUM GEM INDICATOR PGI GEM TESTER USB
$506.47
In stock
Please fill in the fields below with the shipping destination details in order to calculate the shipping cost.
Description
The Presidium Gem Indicator is the only handheld tester inthe industry specifically for colored gemstones that helps to indicate up to 31different types of colored gems based on their thermal conductivity and evenfeatures a color input function that allows users to select from a range ofcommon colors, thereby narrowing down the possible results. With aneasy-to-read clear digital LED screen, this smart thermal tester also comeswith the Presidium patented replaceable probe tip technology, which ensures minimalequipment downtime.
The Presidium Gem Indicator is an enhanced and more convenient handheld version of the revolutionary Presidium Gem Tester/Colored Stone Estimator. It distinguishes between diamonds and other colored gemstones using the principles of thermal conductivity. 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.
Features and Benefits:
• Differentiates between diamonds and other colored gemstones
• Tests up to 31 different types of gemstones
• Color separation function of 12 colors with user input, to
improve accuracy
• Industry’s thinnest probe tip (0.45mm) for testing gemstones
from 0.02ct
• Retractable thermoelectric tip that maintains constant pressure
against gemstone
• Patented refined changeable probe tip
• Metal buzzer alert
• Internal library database function of gemstones and their colors
• Requires just 3 AAA Batteries
• USB connection to PC for more value-added functions
Presidium Gem Indicator PGI distinguishes the following gems:
| No. | Stone Family | Stone Name |
| 1 | Glass | Glass |
| 2 | Beryl | Goshenite |
| 3 | Helidor | |
| 4 | Aquamarine | |
| 5 | Morganite | |
| 6 | Emerald | |
| 7 | Lolite | Lolite |
| 8 | Garnet(Almandine-pyrope group) | Almandine |
| 9 | Pyrope | |
| 10 | Spessartite | |
| 11 | Nephrite | Nephrite |
| 12 | Tanzanite | Tanzanite |
| 13 | Quartz | Chrysoprase |
| 14 | Tourmaline | Tourmaline |
| 15 | Paraiba | |
| 16 | Rubelite | |
| 17 | Garnet(Grossular-Andradite group) | Hessonite |
| 18 | Tsavorite | |
| 19 | Demantoid | |
| 20 | Peridot | Peridot |
| 21 | Jadeite | Jadeite |
| 22 | Quartz | Aventurine |
| 23 | Citrine | |
| 24 | Quartz | |
| 25 | Amethyst | |
| 26 | Spinel | Spinel |
| 27 | Chrysoberyl | Chrysoberyl |
| 28 | Topaz | Topaz |
| 29 | Corundum | Sapphire |
| 30 | Ruby | |
| 31 | Diamond | Diamond |
Recommended Operating Conditions
It is recommended to use the Presidium Gem Indicator in environments
at ambient temperatures of 18°C – 27°C. Calibration using the provided
calibration disk is also recommended when starting to use the product
or when using the product in different environments.
-
![[UK Direct] LO26-II-FT 12.5Ah 48V 500W(Max 800W) 26 Inches Moped Electric Bike Smart Folding Bike 80-90Km Mileage Max Load 100Kg with EU Plug Dual Dics Brake](https://bymatics.com/wp-content/uploads/2026/01/0157c18756bb3f0deeb15171cc2ab3f2-300x300.jpg)
[UK Direct] LO26-II-FT 12.5Ah 48V 500W(Max 800W) 26 Inches Moped Electric Bike Smart Folding Bike 80-90Km Mileage Max Load 100Kg with EU Plug Dual Dics Brake
$1,987.13 Select options This product has multiple variants. The options may be chosen on the product page -
Sale!
![[2025 Fully Laminated Screen] CarpodGo T3 Pro Portable 60fps Wireless Carplay Android Auto,8.9 Inch 1920 * 720 IPS Touch Screen Car Stereo,Display-Only BT Mode Supports Steering Wheel Controls](https://bymatics.com/wp-content/uploads/2025/05/615KiyB_RqL-300x300.jpg)
[2025 Fully Laminated Screen] CarpodGo T3 Pro Portable 60fps Wireless Carplay Android Auto,8.9 Inch 1920 * 720 IPS Touch Screen Car Stereo,Display-Only BT Mode Supports Steering Wheel Controls
Original price was: $384.99.$252.89Current price is: $252.89. Add to cart -

NexiGo TriVision Ultra, 4K Tri-LED-Laser Portable Projector, 2600 Lumens, No Laser Speckle, No Eye Strain, Dolby Vision, HDR10+, Backyard/Home Theater with 3D, 30W DTS Virtual:X, Fire TV Storage Slot
$1,759.99 Add to cart -

Powr-Flite C171HD Classic Metal Floor Machine, 1.5 hp, 175 RPM, 17″
$1,139.60 Add to cart -

PHILIPS FX10 Bluetooth Stereo System for Home with CD Player , MP3, USB, FM Radio, Bass Reflex Speaker, 230 W, Remote Control Included
$252.99 Add to cart -

Sharp Two-Color Printing Calculator, 12-Digit Addding Machine Is Perfect For Everyday Use And Office, Fast 4,8 Lines-Per-Second Ribbon Printer,Quiet Operation (QS-2770H)
$316.80 Add to cart



































Reviews
There are no reviews yet.