---
product_id: 623853873
title: "NALACAL Diamond Tester Pen, High Accuracy Diamond Tester with Ultraviolet (UV) Light, Thermal Conductivity Meter Professional Diamond Tester Jeweler Tool for Retail Jewelers, Novice and Expert Tool"
brand: "nalacal"
price: "₩128873"
currency: KRW
in_stock: true
url: https://www.desertcart.kr/products/623853873-nalacal-diamond-tester-pen-high-accuracy-diamond-tester-with-ultraviolet
store_origin: KR
region: South Korea
---

# High-precision diamond detection Audible metal contact alert Built-in UV fluorescence testing NALACAL Diamond Tester Pen, High Accuracy Diamond Tester with Ultraviolet (UV) Light, Thermal Conductivity Meter Professional Diamond Tester Jeweler Tool for Retail Jewelers, Novice and Expert Tool

**Brand:** nalacal
**Price:** ₩128873
**Availability:** ✅ In Stock

## Summary

> 💎 Test Like a Pro, Shine Like a Boss

## Quick Answers

- **What is this?** NALACAL Diamond Tester Pen, High Accuracy Diamond Tester with Ultraviolet (UV) Light, Thermal Conductivity Meter Professional Diamond Tester Jeweler Tool for Retail Jewelers, Novice and Expert Tool by nalacal
- **How much does it cost?** ₩128873 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/623853873-nalacal-diamond-tester-pen-high-accuracy-diamond-tester-with-ultraviolet)

## Best For

- nalacal enthusiasts

## Why This Product

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

## Key Features

- • **Metal Alert Safety:** Audible buzz prevents false readings by alerting when probe touches metal.
- • **Multi-Level Calibration:** Adjustable sensitivity and volume settings tailor tests to any stone size.
- • **Portable & Power Flexible:** Lightweight design with 9V battery or AC adapter options for on-the-go or studio use.
- • **Fluorescence UV Light Testing:** Integrated ultraviolet light reveals stone fluorescence for deeper verification.
- • **Pinpoint Authenticity Every Time:** Detects natural diamonds and common simulants with professional-grade accuracy.

## Overview

The NALACAL Diamond Tester Pen is a professional jeweler’s tool designed to accurately identify natural diamonds and distinguish them from simulants like cubic zirconia and moissanite. Featuring a built-in ultraviolet light for fluorescence testing, multi-level calibration for precise measurements, and an audible metal contact alert, this lightweight device offers flexible power options and user-friendly portability for both novices and experts.

## Description

NALACAL Diamond Tester Pen, High Accuracy Diamond Tester with Ultraviolet (UV) Light, Thermal Conductivity Meter Professional Diamond Tester Jeweler Tool for Retail Jewelers, Novice and Expert Tool

## Features

- PROFESSIONAL DIAMOND TESTER : Our Diamond Tester Pen can Identifies genuine "natural diamonds" and simulants such as cubic zirconia, moissanite, and simulants including glass, CZ, and simulants.
- MULTIFUNCTIONAL ACCURACY MEASUREMENT : Professional Diamond Tester Pen have Fluorescent Reaction Testing,Equipped with ultraviolet light to assess stone fluorescence.Jewelry Diamond Tester have Multi-Level Calibration ,Flexible volume settings for different stone sizes.
- POWER OPTIONS : Please CHARGE the battery first before using.Diamond Jeweler Tool Operate with a 9V battery (not included) or connect to an A/C adaptor (not included) for long-time indoor use.
- METAL ALERT : Diamond Tester When Testing metal, Audible warning when the probe touches metal. If you hear the Metal Alert buzzing sound,re-touch the probe tip so as to touch only the tested stone.
- GENUINE DIAMOND INDICATOR : Diamond Tester Pen Portability and low battery consumption for convenience,Identify "natural" diamonds and small stones (2pt), has Audible and visual cues for authentic diamonds.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | NALACAL |
| Model Number | YVV-1680 |
| Package Dimensions | 17.3 x 5.1 x 3.3 cm; 80 g |
| Item Weight | 80 g |

## Images

![NALACAL Diamond Tester Pen, High Accuracy Diamond Tester with Ultraviolet (UV) Light, Thermal Conductivity Meter Professional Diamond Tester Jeweler Tool for Retail Jewelers, Novice and Expert Tool - Image 1](https://m.media-amazon.com/images/I/51shpe1ATkL.jpg)

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.kr/products/623853873-nalacal-diamond-tester-pen-high-accuracy-diamond-tester-with-ultraviolet](https://www.desertcart.kr/products/623853873-nalacal-diamond-tester-pen-high-accuracy-diamond-tester-with-ultraviolet)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-01*