---
product_id: 461333720
title: "Diamond Tester, Professional Jewelers' Gemstone Detector, High Accuracy Diamond Checker Pen Professional for Jewelers, Gem Tester (Jewelry-Only Detection)"
brand: "siziviki"
price: "€ 20.43"
currency: EUR
in_stock: true
reviews_count: 13
category: "Siziviki"
url: https://www.desertcart.hr/products/461333720-diamond-tester-professional-jewelers-gemstone-detector-high-accuracy-diamond-checker
store_origin: HR
region: Croatia
---

# 9+ LED lights & beeps for diamond/moissanite Compact 5.3" pen design, IP65 rated durability Battery powered with 30s preheat for precision Diamond Tester, Professional Jewelers' Gemstone Detector, High Accuracy Diamond Checker Pen Professional for Jewelers, Gem Tester (Jewelry-Only Detection)

**Brand:** siziviki
**Price:** € 20.43
**Availability:** ✅ In Stock

## Summary

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

## 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?** € 20.43 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/461333720-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

- • **Durable & Portable:** Sleek, lightweight pen design with IP65 protection means reliable performance on-the-go or in the studio.
- • **Ready When You Are:** Quick 30-second preheat and easy calibration ensure flawless testing every time—no guesswork needed.
- • **Jewelry-Only Precision:** Exclusively tests gemstones, avoiding false positives from metals—perfect for professional jewelers.
- • **All-Inclusive Testing Kit:** Comes complete with battery, testing platform, and detailed video guide to master your diamond checks.
- • **Pinpoint Gemstone Accuracy:** Sophisticated sensor delivers crystal-clear diamond vs. glass/moissanite detection with 9+ LED signals.

## Overview

The Siziviki Diamond Tester is a professional-grade gemstone detector designed for jewelers seeking high accuracy. Featuring a sophisticated sensor with 9+ LED indicators and audible beeps, it precisely distinguishes diamonds, moissanite, jade, and glass. Battery-powered with a quick 30-second preheat and easy calibration, this compact, IP65-rated pen ensures reliable, jewelry-only testing. The package includes a testing platform, 9V battery, user manual, and a step-by-step video guide, making it an essential tool for confident, on-the-spot gemstone verification.

## Description

desertcart.com: Diamond Tester, Professional Jewelers' Gemstone Detector, High Accuracy Diamond Checker Pen Professional for Jewelers, Gem Tester (Jewelry-Only Detection) : Arts, Crafts & Sewing

Review: Good Product - Works Perfectly
Review: Accurate and Affordable — Worked as Expected - Works great for the price. I used it to test a stone I found and was able to quickly determine that it was glass, not a diamond. It’s simple to use and gives clear results. Good option if you need a basic tester without spending a lot.

## Features

- ACCURATE DETECTION : Our professional diamond tester pen (a reliable gem tester) features a sophisticated sensor for precise gemstone identification (Diamonds/Moissanite: 9+ lights + beeps; Jade: 5-6 lights; Crystal/Glass: 5-7 lights). (Jewelry-Only Detection – Not for metal/gold or gold testing kit use)
- STANDARD OPERATION : Insert battery → Power on → MUST preheat 30s (critical) → Adjust indicator to 4th mark (do not skip) → Hold back metal plate → Probe 90° perpendicular to gemstone. Reset to 4th mark before each test
- METAL DETECTION NOTE : Not for metal/gold or gold testing kit use – metal has similar thermal conductivity to diamonds (normal beeping, not a defect). Consistent with title "Jewelry-Only Detection"
- PACKAGE CONTENTS : Diamond tester pen + user manual + 9V battery + testing platform. Read the manual first to maximize accuracy with your diamond detector
- PRECAUTIONS : Avoid windy/cold conditions (15-25℃ recommended); Keep probe perpendicular to gemstone; Turn off power after using this diamond checker
- SEAMLESS SHOPPING EXPERIENCE : Useful usage guidance for this diamond tester and gem tester is available via included resources. Note: Only valid for gemstone testing—non-diamond items cause incorrect readings
- VIDEO GUIDE INCLUDED : Step-by-step operation & troubleshooting video covers preheating, calibration, perpendicular alignment, solves 90% of usage issues

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B5DHYMWX |
| Adjustable Length | Yes |
| Are Batteries Required | Yes |
| Best Sellers Rank | #2,381 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #2 in Jewelry Diamond Testers |
| Brand Name | Siziviki |
| Color | Black |
| Customer Reviews | 4.1 4.1 out of 5 stars (811) |
| Display Type | LED |
| International Protection Rating | IP65 |
| Item Dimensions L x W x H | 5.31"L x 0.87"W x 1.57"H |
| Item Type Name | 23 |
| Item Weight | 0.22 Pounds |
| Manufacturer | Siziviki |
| Material Type | Plastic |
| Model Number | 20 |
| Power Source | Battery Powered |
| UPC | 618087178460 |

## Product Details

- **Batteries Required?:** Yes
- **Brand:** Siziviki
- **Color:** Black
- **Material:** Plastic
- **Power Source:** Battery Powered

## 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)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good Product
*by A***E on March 22, 2026*

Works Perfectly

### ⭐⭐⭐⭐⭐ Accurate and Affordable — Worked as Expected
*by L***T on March 28, 2026*

Works great for the price. I used it to test a stone I found and was able to quickly determine that it was glass, not a diamond. It’s simple to use and gives clear results. Good option if you need a basic tester without spending a lot.

### ⭐⭐⭐⭐⭐ Good product
*by A***C on March 18, 2026*

Works well.

## Frequently Bought Together

- Diamond Tester, Diamond Detector, High Accuracy Diamond Tester Pen for Professional Jewelers, Gem Tester (Metal Detection Limitation)
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**Shop now:** [https://www.desertcart.hr/products/461333720-diamond-tester-professional-jewelers-gemstone-detector-high-accuracy-diamond-checker](https://www.desertcart.hr/products/461333720-diamond-tester-professional-jewelers-gemstone-detector-high-accuracy-diamond-checker)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-25*