---
product_id: 723086302
title: "PRESIDIUM ELECTRONIC GEM GEMSTONE DIAMOND TESTER PGT by Pres"
brand: "presidium"
price: "R$1712"
currency: BRL
in_stock: false
reviews_count: 5
url: https://www.desertcart.com.br/products/723086302-presidium-electronic-gem-gemstone-diamond-tester-pgt-by-pres
store_origin: BR
region: Brazil
---

# PRESIDIUM ELECTRONIC GEM GEMSTONE DIAMOND TESTER PGT by Pres

**Brand:** presidium
**Price:** R$1712
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** PRESIDIUM ELECTRONIC GEM GEMSTONE DIAMOND TESTER PGT by Pres by presidium
- **How much does it cost?** R$1712 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/723086302-presidium-electronic-gem-gemstone-diamond-tester-pgt-by-pres)

## Best For

- presidium enthusiasts

## Why This Product

- Trusted presidium brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

AN INDUSTRY LEADER The Presidium Gem Tester II is based on the invention of Professor Julian Goldsmid from the University of New South Wales in Australia. It was developed to distinguish between diamonds and its other simulants using the principles of thermal conductivity. The Presidium Gem Tester II with Assisted Thermal Calibration provides a quick and easy way to identify diamondsmoissanites and separates up to 16 common colored gemstones based on their thermal conductivity with its clear and direct analog display. NEW INCLUDED CALIBRATION FEATURE As PGT II works on the thermal conductivity of the gemstone, its measurement will be affected by the testing environment. WIth the improved function of Assisted Thermal Calibration (ATC), the user is now able to easily calibrate the tester according to the testing environment for a reliable and consistent reading.

Review: Excellent for cataloging gems... it is not a professional way... but it is a quick way... and then it is advisable to do professional examinations
Review: The Presidium was everything that I expected. Works well and the calibration instructions were easy to follow. I have only one suggestion for improvement and that is to value add by offering a US-to-Australia power plug adaptor.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000TD3G8Q |
| Brand | Presidium |
| Colour | Black |
| Item Dimensions LxWxH | 19.8 x 11.4 x 9.7 Centimeters |
| Item Weight | 505 g |
| Item dimensions L x W x H | 19.8 x 11.4 x 9.7 Centimeters |
| Item model number | PGT-II |
| Manufacturer | Presidium |
| Power Source | Corded Electric |
| Product Dimensions | 19.81 x 11.43 x 9.65 cm; 505 g |
| UPC | 798804941239 730792705646 |

## Product Details

- **Brand:** Presidium
- **Colour:** Black
- **Item dimensions L x W x H:** 19.8 x 11.4 x 9.7 Centimeters
- **Power Source:** Corded Electric
- **UPC:** 798804941239 730792705646

## Images

![PRESIDIUM ELECTRONIC GEM GEMSTONE DIAMOND TESTER PGT by Pres - Image 1](https://m.media-amazon.com/images/I/31Bj3DnEu7L.jpg)
![PRESIDIUM ELECTRONIC GEM GEMSTONE DIAMOND TESTER PGT by Pres - Image 2](https://m.media-amazon.com/images/I/31HWB-JpJKL.jpg)
![PRESIDIUM ELECTRONIC GEM GEMSTONE DIAMOND TESTER PGT by Pres - Image 3](https://m.media-amazon.com/images/I/411u5Jc07iL.jpg)
![PRESIDIUM ELECTRONIC GEM GEMSTONE DIAMOND TESTER PGT by Pres - Image 4](https://m.media-amazon.com/images/I/419XduHGxuL.jpg)
![PRESIDIUM ELECTRONIC GEM GEMSTONE DIAMOND TESTER PGT by Pres - Image 5](https://m.media-amazon.com/images/I/41TJ0bd5ocL.jpg)

## Questions & Answers

**Q: What is the best presidium model?**
A: I have the colored stone estimator model and like it very well. The duo meter is good for follow-up testing of colored stones,also. The main thing to remember is that you have to make several tests to verify a gemstone properly, such as a refractometer, etc. Presidium is top of the line.

**Q: is there one now with a moissanite tester?**
A: Yes that will the  presidium duo model we have it available starting at 349

**Q: does this tool looks like the one on the picture? also does it work well?**
A: Works well

**Q: The red light won't stop flashing to indicate the tester is ready for calibration. What can I try to reset it?**
A: As you stated, the Tester is ready for calibration. Please follow the calibration instructions in the little manual or go to the Presidium website. Good Luck!!!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by C***️ on 20 October 2024*

Excellent for cataloging gems... it is not a professional way... but it is a quick way... and then it is advisable to do professional examinations

### ⭐⭐⭐⭐⭐ Review
*by W***L on 20 May 2024*

The Presidium was everything that I expected. Works well and the calibration instructions were easy to follow. I have only one suggestion for improvement and that is to value add by offering a US-to-Australia power plug adaptor.

### ⭐ Review
*by ا***ي on 17 May 2023*

لقد تم تجربة المنتج على احجار اللماس صحيحه ١٠٠٪؜ ولم يعطي نتيجه صحيحه كل ذلك اقل بنسبة ٣٠٪؜ وهاذي نسبة تخلي الواحد يتراجع او يفرط في قطعه ١٠٠٪؜ صحيحه والشي الاخر لم تتم اعادة المبلغ الى الان مايقارب ١٤ يوما واكثر ولا زلت انتظر وكل يوم اتصل ولا احد يفيدني

## Frequently Bought Together

- Presidium Instruments Gem Tester II (PGT II) with Assisted Thermal Calibration (ATC) for Identifying Diamonds/Moissanites and Common Colored Gemstones
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- Gem Identification Made Easy (6th Edition): A Hands-On Guide to More Confident Buying & Selling

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**Shop now:** [https://www.desertcart.com.br/products/723086302-presidium-electronic-gem-gemstone-diamond-tester-pgt-by-pres](https://www.desertcart.com.br/products/723086302-presidium-electronic-gem-gemstone-diamond-tester-pgt-by-pres)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-16*