---
product_id: 647732736
title: "Diamond Tester, Professional Jewelers' Gemstone Detector, High Accuracy Diamond Checker Pen Professional for Jewelers, Gem Tester (Jewelry-Only Detection)"
brand: "siziviki"
price: "€ 24.65"
currency: EUR
in_stock: true
reviews_count: 11
category: "Siziviki"
url: https://www.desertcart.ie/products/647732736-diamond-tester-professional-jewelers-gemstone-detector-high-accuracy-diamond-checker
store_origin: IE
region: Ireland
---

# 9-segment LED precision sensor Includes 9V battery & leather case 30-second rapid preheat Diamond Tester, Professional Jewelers' Gemstone Detector, High Accuracy Diamond Checker Pen Professional for Jewelers, Gem Tester (Jewelry-Only Detection)

**Brand:** siziviki
**Price:** € 24.65
**Availability:** ✅ In Stock

## Summary

> 💎 Test Like a Pro, Shine Like a Boss!

## Quick Answers

- **What is this?** Diamond Tester, Professional Jewelers' Gemstone Detector, High Accuracy Diamond Checker Pen Professional for Jewelers, Gem Tester (Jewelry-Only Detection) by siziviki
- **How much does it cost?** € 24.65 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/647732736-diamond-tester-professional-jewelers-gemstone-detector-high-accuracy-diamond-checker)

## Best For

- siziviki enthusiasts

## Why This Product

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

## Key Features

- • **Complete Pro Kit:** Includes diamond tester pen, testing platform, 9V battery, user manual, and sleek leather pouch for on-the-go pros.
- • **Ready in a Flash:** Just 30 seconds preheat for instant, reliable gemstone verification—no more waiting around.
- • **Stay Sharp, Save Power:** Auto-off feature conserves battery life so you’re always ready to impress clients with fast, accurate results.
- • **User-Friendly Precision:** Ergonomic design with clear instructions and video guide ensures flawless testing even for beginners.
- • **Pinpoint Accuracy Every Time:** Sophisticated 9-level LED sensor distinguishes diamonds, moissanite, jade, and more with crystal-clear results.

## Overview

The Siziviki Diamond Tester is a professional-grade gemstone detector featuring a 9-segment LED sensor that accurately identifies diamonds, moissanite, jade, and other gems. With a quick 30-second preheat and included 9V battery, testing platform, and leather case, it offers a complete, portable solution for jewelers and gemstone enthusiasts. Designed for precision and ease of use, it comes with a detailed manual and video guide, making it the ultimate tool for authenticating precious stones with confidence.

## Description

Features: 1、Professional instruments can help you test the authenticity of masonry. You can not only test diamonds, but also test the authenticity of agate, jade, and crystal. Can meet your daily needs. 2、You will receive a jewelry tester set, which includes a diamond testing kit, a small holder for easy measurement of the diamond, and a leather case. How to test diamond: 1: Put the battery in. 2: Turn on the switch.Make sure only 1 light is lighting up on the scale. Make sure the “Ready Lamp”Light on. 3: Turn on the lights number corresponding to the indoor temperature and diamond weight. 4: When testing diamond, your index finger must keep touching the mmetal panel on the back of the gold detector for jewelry. The probe is 90 degrees vertical to the diamond. Package include: 1 x Diamond Tester Tools 1 x Leather Pouch Case 1 x Testing Platform 1 x User Manual 1 x 9V Battery

Review: It should b not flimsy - Nice true
Review: I have not got my refund and the team not came to collect - Broken nib and battery don’t work

## Features

- ACCURATE DETECTION: Our diamond tester pen features a sophisticated sensor system that accurately identifies diamonds, with 5 lights for glass, 5-6 for jade, 5 for cubic zirconia, 7 for gemstone crystal, and 9 for diamonds and moissanite. It's designed to provide clear distinctions for various gemstones, ensuring you get precise results
- STANDARD OPERATION: Insert the battery, power on the gem tester, then preheat the tester for 30 seconds. Adjust the indicator to the fourth mark (Otherwise, inaccurate results may be obtained), press the triangular metal plate at the back with your finger, and position the probe perpendicular to the gemstone. For diamonds, the light will jump to the ninth segment or higher (red light area) and emit beeps. Always reset to the fourth mark before each test.
- METAL DETECTION RESTRICTIONS: The diamond tester is not designed for metal, gold, plastic, fingers type testing. When testing metals, it will emit a rapid beeping sound due to the similarity of the thermal conductivity of the metal to the diamond. It may mimic diamond readings and beep when exposed to high thermal conductivity products. Testing gemstone diamonds only
- PACKAGRE CONTENES: The diamond detector complete set includes a diamond tester pen, user manual, 9V battery and testing platform for your convenience. Before you begin testing, please carefully read the instructions and tips in the user manual to help you achieve the most accurate results from the diamond tester
- PRECAYTIONS: For accurate testing, avoid testing in windy conditions. Position the tip of the diamond tester professional perpendicular to the gemstone for accurate readings, observe the light pattern to determine the stone's authenticity. Always turn off the power after testing to conserve battery life
- SEAMLESS SHOPPING EXPERIENCE: Our dedicated customer service is ready to assist you with any questions you may have about product usage, ensuring you can fully leverage our diamond tester. Note: Only valid for gemstone diamond testing—non-diamond items will cause incorrect readings
- VIDEO GUIDE INCLUDED: For the easiest and clearest visual instructions, watch our step-by-step operation and troubleshooting video in the diamond detector images or description section

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Siziviki |
| Colour | Gray-black |
| Batteries Required? | Yes |
| Material | Plastic |
| Power Source | Battery Powered |
| Item Weight | 100 g |
| Product Dimensions | 13.5L x 2.2W x 4H Centimeters |
| Adjustable Length | Yes |
| International Protection Rating | IP65 |
| Recommended Uses For Product | Gemstone Identification, Diamond Authentication |
| Manufacturer | Siziviki |
| UPC | 618087178460 |
| Country of Origin | India |
| Item model number | 20 |
| ASIN | B0B5DHYMWX |

## Product Details

- **Brand:** Siziviki
- **Colour:** Gray-black
- **Batteries Required?:** Yes
- **Material:** Plastic
- **Power Source:** Battery Powered
- **Item Weight:** 100 g
- **Product Dimensions:** 13.5L x 2.2W x 4H Centimeters
- **Adjustable Length:** Yes
- **International Protection Rating:** IP65
- **Recommended Uses For Product:** Gemstone Identification, Diamond Authentication

## Images

![Diamond Tester, Professional Jewelers' Gemstone Detector, High Accuracy Diamond Checker Pen Professional for Jewelers, Gem Tester (Jewelry-Only Detection) - Image 1](https://m.media-amazon.com/images/I/61oqwz1fSbL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It should b not flimsy
*by K***G on 21 December 2025*

Nice true

### ⭐ I have not got my refund and the team not came to collect
*by F***H on 23 December 2025*

Broken nib and battery don’t work

### ⭐ O
*by S***A on 19 December 2025*

Bad product

## Frequently Bought Together

- Diamond Tester, Diamond Detector, High Accuracy Diamond Tester Pen for Professional Jewelers, Gem Tester (Metal Detection Limitation)
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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-13*