---
product_id: 643724813
title: "Xinler Accuracy Jewelry-Diamond Tester Pen Professional Jewelry Diamond Tester Tool （No Batteries Included）"
brand: "xinler"
price: "₩37437"
currency: KRW
in_stock: true
reviews_count: 8
url: https://www.desertcart.kr/products/643724813-xinler-accuracy-jewelry-diamond-tester-pen-professional-jewelry-diamond-tester
store_origin: KR
region: South Korea
---

# Compact 16x4x2.2cm, 100g, 9V powered 9+ lights & beep = real diamond Multi-gem detection: sapphire, ruby, jade & more Xinler Accuracy Jewelry-Diamond Tester Pen Professional Jewelry Diamond Tester Tool （No Batteries Included）

**Brand:** xinler
**Price:** ₩37437
**Availability:** ✅ In Stock

## Summary

> 💎 Test Like a Pro, Shine Like a Boss

## Quick Answers

- **What is this?** Xinler Accuracy Jewelry-Diamond Tester Pen Professional Jewelry Diamond Tester Tool （No Batteries Included） by xinler
- **How much does it cost?** ₩37437 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/643724813-xinler-accuracy-jewelry-diamond-tester-pen-professional-jewelry-diamond-tester)

## Best For

- xinler enthusiasts

## Why This Product

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

## Key Features

- • **User-Friendly Calibration:** Simple glass calibration ensures accurate readings every time, empowering you to test with confidence.
- • **Ergonomic & Portable Design:** Lightweight 100g pen-sized tester fits perfectly in your toolkit or pocket for on-the-go gem verification.
- • **Versatile Multi-Gem Testing:** Effortlessly test sapphires, rubies, jade, agate, and crystals with calibrated light indicators tailored for each stone.
- • **Precision Diamond Verification:** Instantly confirm diamond authenticity with 9+ lights and audible beep—never second guess your gems again.
- • **Professional-Grade Reliability:** Trusted by jewelers and enthusiasts alike, this tester delivers consistent, battery-powered precision without the fuss.

## Overview

The Xinler Accuracy Jewelry Diamond Tester Pen is a professional-grade, battery-powered tool designed to authenticate diamonds and multiple precious gemstones including sapphire, ruby, jade, agate, and crystal. Featuring a precise light and beep system, it offers quick, reliable results in a compact, ergonomic design perfect for jewelers and gemstone enthusiasts seeking confidence and accuracy in every test.

## Description

If the number of lights equal or exceed 9, and it beeps, it means the diamond is true. If the number of lights is 9 and it beeps, it means the sapphire is true. If the number of lights is 6.5-7, it means the agate is true. If the number of lights 7-8 , it means the crystal is true. If the number of lights is 6-7, it means the jade is true. ★ Before Test: 1. Put the battery into the tester. 2. Take off the probe cap. 3. Turn on the switch. 4. Make sure just 1 light light up on the scale. 5. Make sure the " ready lamp" light on. 6. (If you test diamond, you then need to turn on the number of lights corresponding to the indoor temperature and diamond weight. ) 7. (If you test other gems, you'd better calibrate the probe before testing, Method: by placing the probe vertically on a piece of glass, then adjusting the light to 5, and then placing the probe on the gemstone to test.) 8. Test is ready. ★ NOTICE: * No matter what gemstone you are testing, the probe needle and the tested object must be at a 90° angle. * When testing diamond, your right index finger must keep touching the metal panel on the back of the tester, while you do not touch the panel if you test other gemstones. * Do Not test any metal. * Do Not wear glove. Product size: 16 * 4 * 2.2 cm. weight: 100g. Power needed: 1x 9V battery (not included). Package contains:  - 1x diamond tester  - 1x English introduction - 1x black storage case If you have any problem about the testing, please contact us, we would love to help.

## Features

- This gemstone testing equipment is not only a diamond tester, but also a multi gemstone tester. It can detect if a gemstone is real or fake, including: diamond, sapphire, ruby, crystal, agate, jadeite, and other precious stone of various sizes.
- * If the number of lights equals or exceeds 9, and it beeps, it means the diamond is true. * If the lights is about 9 and it beeps, it means the sapphire is true. * If the number is 6.5-7, it means the agate is true. * If the number is 7-8 , it means the crystal is true. * If the number is 6-7, it means the jade is true.
- Before Test: 1. Put the battery in the tester. 2. Take off the probe cap. 3. Turn on the switch. 4. Make sure only one light light up on the scale. 5. Make sure the " ready lamp" light on. 6. (If test diamond, you then need to turn on the lights number corresponding to the indoor temperature and diamond weight.). 7. (If test other gems, you'd better calibrate the probe, method: by placing the probe vertically on a glass, then adjusting the light to 5, then test the gems.)
- ★ NOTICE: * No matter what gemstone you are testing, the probe needle and the tested object must be at a 90° angle. * When testing diamond, your right index finger must keep touching the metal panel on the back of the tester, while you do not touch the panel if you test other gemstones. * Do Not test any metal. * Do Not wear glove.
- Product size: 16 * 4 * 2.2 cm. weight: 100g. Power needed: 1x 9V battery (not included). If you have any problem about the testing, please contact us, we would love to help.

## Images

![Xinler Accuracy Jewelry-Diamond Tester Pen Professional Jewelry Diamond Tester Tool （No Batteries Included） - Image 1](https://m.media-amazon.com/images/I/71HbOyzCtfL.jpg)
![Xinler Accuracy Jewelry-Diamond Tester Pen Professional Jewelry Diamond Tester Tool （No Batteries Included） - Image 2](https://m.media-amazon.com/images/I/61KCv+cz0mL.jpg)
![Xinler Accuracy Jewelry-Diamond Tester Pen Professional Jewelry Diamond Tester Tool （No Batteries Included） - Image 3](https://m.media-amazon.com/images/I/61x2jJTiuwL.jpg)
![Xinler Accuracy Jewelry-Diamond Tester Pen Professional Jewelry Diamond Tester Tool （No Batteries Included） - Image 4](https://m.media-amazon.com/images/I/61VZklMjxyL.jpg)
![Xinler Accuracy Jewelry-Diamond Tester Pen Professional Jewelry Diamond Tester Tool （No Batteries Included） - Image 5](https://m.media-amazon.com/images/I/612coOwz8fL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Does the trick without having to turn down offers from a pawn shop or jewelry store
*by T***L on April 9, 2024*

I found what I thought was a diamond laying on the ground in the parking lot at a local Walmart. It captured the light just right, so even though it was tiny, I was still able to see it. It cut glass, but lab created diamonds can also cut glass. I was going to take it to one of our local jewelers to look at it and see if it was real, however I knew they could probably get over on me, so I just bought this for myself. It's good to have, especially when buying 2nd hand jewelry that people claim are real - this is a good tool to carry so you can verify before getting scammed. I tried it on one of the rings in my bridal set, it identified it was a genuine diamond (listed as this as well), and I tried another ring, swarovsky crystal, it didn't light up. I tried the "diamond" I found in the parking lot and it was a very low reading on the meter, meaning it was not a genuine diamond. Broke my heart but I'm glad I was able to check and get an answer! I recommend this tool, especially if you're interested in gems and such.

### ⭐⭐⭐⭐⭐ Find a  Diamond
*by L***U on May 13, 2025*

Easy to use, I take it along with me to rummage and yard sales. Good price too.

### ⭐ Bad product, doesn’t work
*by S***5 on July 3, 2025*

Doesn’t work

## Frequently Bought Together

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-24*