---
product_id: 595753346
title: "Electronic diamond tester pen, Diamond Selector, Diamond Tester Selector, Stones hardness test tool, for diamond, sapphire, ruby, crystal, agate, for Novice and Accuracy Professional"
brand: "kowvowz"
price: "€ 34.10"
currency: EUR
in_stock: true
url: https://www.desertcart.es/products/595753346-electronic-diamond-tester-pen-diamond-selector-diamond-tester-selector-stones
store_origin: ES
region: Spain
---

# High Precision Temperature Range Audio Alert Electronic diamond tester pen, Diamond Selector, Diamond Tester Selector, Stones hardness test tool, for diamond, sapphire, ruby, crystal, agate, for Novice and Accuracy Professional

**Brand:** kowvowz
**Price:** € 34.10
**Availability:** ✅ In Stock

## Summary

> 💎 Discover the Truth Behind Your Gems!

## Quick Answers

- **What is this?** Electronic diamond tester pen, Diamond Selector, Diamond Tester Selector, Stones hardness test tool, for diamond, sapphire, ruby, crystal, agate, for Novice and Accuracy Professional by kowvowz
- **How much does it cost?** € 34.10 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/595753346-electronic-diamond-tester-pen-diamond-selector-diamond-tester-selector-stones)

## Best For

- kowvowz enthusiasts

## Why This Product

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

## Key Features

- • **Multi-Gem Mastery:** Effortlessly identify diamonds, sapphires, rubies, and more with one sleek tool.
- • **Real-Time Feedback:** Stay informed with instant audio and visual alerts for genuine gems.
- • **Unmatched Accuracy:** Experience professional-grade testing with precise thermal conductivity measurements.
- • **User-Friendly Design:** Engineered for simplicity, making gem testing accessible for novices and pros alike.
- • **Optimal Testing Conditions:** Designed to perform flawlessly in a controlled environment of 5-35°C and 80% humidity.

## Overview

The Electronic Diamond Tester Pen is a precision instrument designed for accurately testing the authenticity of various gemstones, including diamonds, sapphires, and rubies. With its user-friendly interface, real-time audio alerts, and reliable performance in specific environmental conditions, this tool is perfect for both novice gem enthusiasts and professional jewelers.

## Description

Electronic diamond tester pen, Diamond Selector, Diamond Tester Selector, Stones hardness test tool, for diamond, sapphire, ruby, crystal, agate, for Novice and Accuracy Professional

## Features

- 💎【Reliable Trust:】Electronic Diamond Tester Pen Professional design, good workmanship, accurate and reliable testing, LCD display and LED display.
- 💎【High Precision】This Electronic Diamond Tester Pen is a day-to-day, professional and electronic tester. If the stone is real diamond, the red light will light up and the audio display beep will ring.
- 💎【Major】The Electronic Diamond Tester Pen is a kind of electronic instrument that was specially developed and manufactured for the thermal conductivity of diamond. It is an electronic precision instrument. The operating environment is 5-35 degrees Celsius. The relative humidity is 80. The test stone must be clean, dry and at room temperature.
- 💎【Operator Simplicity】This Electronic Diamond Tester Pen is not only a diamond tester, but also a multi-gem tester. It can tell if a gem is real or false, including: diamond, sapphire, ruby, crystal, agate, jadeite, and other gemstones of various sizes.
- 💎【Application】Electronic Diamond Tester Pen No matter which gem you test, the probe needle and the object being tested must be at a 90 ° angle. * When testing diamond, your right index finger must touch the metal plate on the back of the tester while you are not touching the panel when testing other gemstones. * Dont test metal. * Do not wear gloves.

## Product Details

- **Brand:** KOWVOWZ
- **Power source:** Battery Powered
- **Style:** portable
- **Colour:** Black
- **Item weight:** 119 Grams

## Images

![Electronic diamond tester pen, Diamond Selector, Diamond Tester Selector, Stones hardness test tool, for diamond, sapphire, ruby, crystal, agate, for Novice and Accuracy Professional - Image 1](https://m.media-amazon.com/images/I/71kNp9OgzhL.jpg)

## Frequently Bought Together

- Electronic diamond tester pen, Diamond Selector, Diamond Tester Selector, Stones hardness test tool, for diamond, sapphire, ruby, crystal, agate, for Novice and Accuracy Professional
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**Shop now:** [https://www.desertcart.es/products/595753346-electronic-diamond-tester-pen-diamond-selector-diamond-tester-selector-stones](https://www.desertcart.es/products/595753346-electronic-diamond-tester-pen-diamond-selector-diamond-tester-selector-stones)

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-01-22*