---
product_id: 595317635
title: "Diamond Tester, Jewelry Diamond Tester, Thermal Conductivity Meter, Can't Test Metal,Must be Operated with Both Hands"
brand: "hmkis"
price: "143 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/595317635-diamond-tester-jewelry-diamond-tester-thermal-conductivity-meter-cant-test
store_origin: PL
region: Poland
---

# 4 green lights init for accuracy Distinct beep patterns for diamond/metal alerts USB rechargeable 9V battery powered Diamond Tester, Jewelry Diamond Tester, Thermal Conductivity Meter, Can't Test Metal,Must be Operated with Both Hands

**Brand:** hmkis
**Price:** 143 zł
**Availability:** ✅ In Stock

## Summary

> 💎 Spot the real sparkle, skip the fakes—test like a pro!

## Quick Answers

- **What is this?** Diamond Tester, Jewelry Diamond Tester, Thermal Conductivity Meter, Can't Test Metal,Must be Operated with Both Hands by hmkis
- **How much does it cost?** 143 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/595317635-diamond-tester-jewelry-diamond-tester-thermal-conductivity-meter-cant-test)

## Best For

- hmkis enthusiasts

## Why This Product

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

## Key Features

- • **Smart Metal Alert:** High-frequency buzzer instantly warns when metal is detected, avoiding false positives.
- • **Dual-Hand Operation:** Engage both hands—one holding the stone, the other grounding the tester—for flawless readings.
- • **Portable & Rechargeable:** Compact design powered by USB rechargeable battery keeps you testing on-the-go without interruptions.
- • **Clear Diamond Indicators:** Red lamp level meter visually scales stone size; audible beeps confirm authenticity.
- • **Precision Initialization:** Ensure 4 green lights glow for foolproof diamond detection every time.

## Overview

The HMKIS Diamond Tester is a handheld thermal conductivity meter designed to quickly and accurately distinguish real diamonds from simulants like cubic zirconium and glass. Featuring a unique dual-hand operation and a metal alert buzzer, it ensures precise readings by detecting thermal conductivity differences and alerting users to metal contact. Powered by a USB rechargeable 9V battery, it offers portability and convenience for professionals and enthusiasts alike.

## Description

Diamond Tester, Jewelry Diamond Tester, Thermal Conductivity Meter, Can't Test Metal,Must be Operated with Both Hands

## Features

- 【Initialization】After powering on, turn the wheel to keep 4 green lights on to finish the Initialization. Otherwise you will get inaccurate results. All test must be done by two hands, one for hold the diamond and one for the diamond tester. As for the hand which hold diamond tester, you have to touch the electricity conductive panel on the back of the unit.
- 【For Diamond】For testing diamond, it will emits beeping-beeping-beeping in a low frequency, 1 time/second. Meanwhile 1-4 pieces of the RED LAMP box of the level meter light on(the bigger the size of the stone is, the more pieces of the red lamp box of the level meter light up)
- 【For Imitation】When Testing Imitation stone,such as cubic zirconium ( CZ ), crystal, glass, there will be no sound, and the red lamp won’t light.
- 【Metal Alert】When Testing metal, it will emits beeping-beeping-beeping in a high frequency,5times/second. The thermal conductivity of the metal is very high and can give the same indication as a diamond with most thermal probes.)This Diamond Selector II has a metal Alert Buzzer to warn you when touches metal. If you hear the Metal Alert buzzing sound,re-touch the probe tip so as to touch only the tested stone.
- 【Other Alert】When test other items, it will also emits beeping-beeping-beeping in a high frequency,5times/second,such as your body,water,and so on.
- 【Moissanite & Real Diamonds】:This diamond tester II can just distinguish diamond and fake diamond,but CAN NOT distinguish Moissanite & Real Diamonds
- [Bare Hands Operation]: All the tests must be done by your bare hands. If you put on your gloves, the metal alert will not function since a normal moisture levelof your hands is necessary for operation.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | HMKIS |
| Power Source | Battery Powered |
| Style | Diamond Tester |
| Colour | Diamond Tester |
| Item Weight | 370 Grams |
| Item dimensions L x W x H | 19 x 5.8 x 3.6 Centimeters |
| Min. Operating Voltage | 9 Volts |
| Measurement Type | Thermal Conductivity Meter |
| Manufacturer | HMKIS |
| Country of Origin | India |
| Item model number | Diamond Tester |
| ASIN | B097NYJNZ4 |

## Product Details

- **Brand:** HMKIS
- **Power Source:** Battery Powered
- **Style:** Diamond Tester
- **Colour:** Diamond Tester
- **Item Weight:** 370 Grams

## Images

![Diamond Tester, Jewelry Diamond Tester, Thermal Conductivity Meter, Can't Test Metal,Must be Operated with Both Hands - Image 1](https://m.media-amazon.com/images/I/71yvzy91vWL.jpg)

## Available Options

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

## Frequently Bought Together

- HMKIS Diamond Tester Pen and 9V Battery Kit,High Accuracy Jewelry Diamond Tester,Diamond Selector for Novice and Expert, Thermal Conductivity Meter (Diamond Tester)
- Gold and Silver Jewelry Testing Solutions Kit 10k 14k 18k 22k 24k Scratch Stone Acid Test Scrap Bars Coins

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-29*