---
product_id: 497170241
title: "Presidium Duo Tester PDT Diamond Gemstone Tester"
brand: "presidium"
price: "7684 kr"
currency: DKK
in_stock: true
url: https://www.desertcart.dk/products/497170241-presidium-duo-tester-pdt-diamond-gemstone-tester
store_origin: DK
region: Denmark
---

# consistent pressure for reliable results tests gems as small as 0.02ct 0.6mm thinnest probe tip Presidium Duo Tester PDT Diamond Gemstone Tester

**Brand:** presidium
**Price:** 7684 kr
**Availability:** ✅ In Stock

## Summary

> 💎 Test Like a Pro, Spot the Real Glow!

## Quick Answers

- **What is this?** Presidium Duo Tester PDT Diamond Gemstone Tester by presidium
- **How much does it cost?** 7684 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/497170241-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

- • **Compact & Certified:** Modern, lightweight design with CE and RoHS certifications—professional-grade testing on the go.
- • **Effortless Consistency:** Retractable thermoelectric probe ensures constant pressure, delivering reliable results every time.
- • **Precision Meets Miniature:** Industry’s thinnest 0.6mm probe tip for pinpoint testing on tiny gemstones down to 0.02ct.
- • **User-Friendly Analog Dial:** Large, easy-to-read dial featuring 15 colored gemstones for quick, intuitive identification.
- • **Dual-Tech Diamond Detection:** Combines thermal conductivity and reflective index methods for unmatched accuracy.

## Overview

The Presidium Duo Tester PDT II is a cutting-edge gemstone tester combining thermal and reflective technologies to accurately distinguish diamonds from simulants. Featuring the industry’s thinnest 0.6mm retractable probe tip, it reliably tests even the tiniest gems down to 0.02ct. Its large analog dial with 15 colored gemstones ensures quick, user-friendly operation, making it an essential tool for professionals demanding precision and consistency.

## Description

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 |
|---------------|-------|
| Manufacturer | Presidium |
| Part Number | PSPDTS7 |
| Package Dimensions | 20.07 x 11.68 x 9.65 cm; 703.06 g |
| Item model number | PDT-S7 |
| Colour | Black |
| Style | Compact, Modern |
| Material | Other |
| Power Source | Corded Electric |
| Item Package Quantity | 1 |
| Certification | CE, RoHS |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 703 g |

## Product Details

- **Brand:** Presidium
- **Power source:** Corded Electric
- **Style:** Compact, Modern
- **Colour:** 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.dk/products/497170241-presidium-duo-tester-pdt-diamond-gemstone-tester](https://www.desertcart.dk/products/497170241-presidium-duo-tester-pdt-diamond-gemstone-tester)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-03-09*