---
product_id: 82406847
title: "Presidium Duo Tester PDT Diamond Gemstone Tester"
brand: "presidium"
price: "C$50819"
currency: NIO
in_stock: true
url: https://www.desertcart.ni/products/82406847-presidium-duo-tester-pdt-diamond-gemstone-tester
store_origin: NI
region: Nicaragua
---

# 15 gemstone colors Tests 0.02ct gems 0.6mm probe tip Presidium Duo Tester PDT Diamond Gemstone Tester

**Brand:** presidium
**Price:** C$50819
**Availability:** ✅ In Stock

## Summary

> 💎 Unleash Your Inner Gemologist!

## Quick Answers

- **What is this?** Presidium Duo Tester PDT Diamond Gemstone Tester by presidium
- **How much does it cost?** C$50819 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/82406847-presidium-duo-tester-pdt-diamond-gemstone-tester)

## Best For

- presidium enthusiasts

## Why This Product

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

## Key Features

- • **Gemstone Guru:** Test even the tiniest gems with confidence and ease.
- • **Compact & Modern:** Sleek design fits perfectly in your toolkit or pocket.
- • **User-Friendly Design:** Large analog dial makes reading results a breeze.
- • **Reliable Results Every Time:** Count on consistent performance for all your gemstone testing needs.
- • **Precision at Your Fingertips:** Experience the industry's thinnest probe tip for unparalleled accuracy.

## Overview

The Presidium Duo Tester PDT is a state-of-the-art diamond and gemstone tester featuring a retractable thermoelectric probe tip, designed for precision testing of even the smallest gemstones. With its industry-leading 0.6mm probe, large analog dial, and reliable results, this compact and modern tool is perfect for both professionals and enthusiasts alike.

## Description

Presidium Duo Tester PDT Diamond Gemstone Tester

## Features

- Retractable thermoelectric probe tip that ensures constant pressure between probe and gemstone
- Industrys thinnest probe tip (0.6mm) for testing gemstones as small as 0.02ct
- Large easy to read analog dial with 15 colored gemstones
- Consistent and reliable results every time
- Simple and easy to use

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Presidium |
| Power Source | Battery Powered |
| Style | Compact, Modern |
| Color | Black |
| Item Weight | 0.7 Kilograms |
| Measurement Type | Thermal Conductivity, Reflective Index |
| Manufacturer | Presidium |
| Part Number | PSPDTS7 |
| Item Weight | 1.55 pounds |
| Package Dimensions | 7.9 x 4.6 x 3.8 inches |
| Item model number | PDT-S7 |
| Is Discontinued By Manufacturer | No |
| Material | Other |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Presidium
- **Power Source:** Battery Powered
- **Style:** Compact, Modern
- **Color:** Black
- **Item Weight:** 0.7 Kilograms

## Images

![Presidium Duo Tester PDT Diamond Gemstone Tester - Image 1](https://m.media-amazon.com/images/I/71ouVg+sYEL.jpg)

## Questions & Answers

**Q: Does this test for Moissanite ?**
A: The DuoTester can test Conductivity of Moissanite, and also Reflectivity if your Moissanite sample is a cut gem with a flat surface.  In the Conductivity test, Moissanite would read into the Diamond range, narrowing the question to either Diamond or Moissanite.  But then the Reflectivity test should separate the two species because Moissanite is more reflective than Diamond.

**Q: Does the duo tester work for torquise?**
A: No torquise is not a reflective stone.

**Q: Does this model work for rough diamonds that show no clarity and just came out of the soil? This exact model not another model please.**
A: i do not test rough diamonds that show no clarity and just came out of the soil.
the technical specs for the device is not totally dependent on the clarity ...yet is based on both their thermal conductivity and reflective indexes.

**Q: How much voltage, frequeny and wattage?**
A: This is not a voltage meter. It measures the density of a gem stone to determine gem type. Your question does not make any since.

## Frequently Bought Together

- Presidium Duo Tester PDT Diamond Gemstone Tester
- Professional Gold, Silver, Platinum Jewelry Testing Kit with Stone Instructions and Box with 30X Eye Loupe Magnifier Precious Metals 10K 14K 18K 24K 999 925 Scrap

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**Shop now:** [https://www.desertcart.ni/products/82406847-presidium-duo-tester-pdt-diamond-gemstone-tester](https://www.desertcart.ni/products/82406847-presidium-duo-tester-pdt-diamond-gemstone-tester)

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-02*