Why do I get diamonds in almost everything I test?

The device is set to the wrong setting. The S setting is the ultra-sensitive setting and can only be used to test Micro-Diamonds. This setting will cause false readings if it is used to test objects weighing more than 0.2 grams.

Why does my device barely respond when I test diamonds?Why not work?

The L setting is specifically designed for large diamonds. If you use this setting to test small diamonds, the device will barely react.

What should I do if I don't know the exact size of the diamond?

You can start by testing with the M setting. The M setting is for testing diamonds between 0.5 and 1 carat.

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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HMKIS Diamond Tester Pen, High Accuracy Jewelry Diamond Tester＋ 60X Mini LED Magnifying, Professional Diamond Selector for Novice and Expert, Thermal Conductivity Meter

Product ID: 306078742

Details

Brand
HMKIS
Colour
Black
Item weight
120 Grams
Power source
Battery
Style
Compact

⚡Fast, safe, and non-destructive testing

💎High accuracy diamond detection ≥9 sound+light

🔬60X LED magnification for detailed inspection

€ 69.08

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

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Description

💎 Spot the real sparkle, anytime, anywhere!

ALL INCLUSIVE KIT - Comes with tester pen, 60X magnifier, leather pouch, and testing platform—everything a pro needs.
POCKET SIZED POWER - Compact, lightweight design fits your professional toolkit for on-the-go verification.
MAGNIFY EVERY DETAIL - Built-in 60X LED microscope reveals intricate gem, coin, and antique details anytime, anywhere.
SAFE SPEEDY TESTING - Non-invasive thermal conductivity meter ensures quick results without damaging your precious stones.
PRECISION YOU CAN TRUST - Detect real diamonds instantly with audible and LED alerts for stones scoring 9 or above.

The HMKIS Diamond Tester Pen is a professional-grade, battery-powered device designed for rapid and accurate diamond verification. Featuring a thermal conductivity meter with audible and LED indicators, it distinguishes real diamonds from simulants like cubic zirconia. Its integrated 60X LED magnifier enhances inspection of gems, coins, and antiques, all housed in a compact, portable design with a protective leather pouch. Ideal for novices and experts alike, it offers safe, non-destructive testing with easy calibration for various stone sizes.

Specifications

ASIN	B08MTG5NHJ
Brand Name	HMKIS
Color	Black
Customer Reviews	4.1 4.1 out of 5 stars (7,912)
Global Trade Identification Number	09070190994879
Included Components	Diamond Tester
Item Dimensions	25.8 x 5.5 x 3.5 centimeters
Item Weight	120 Grams
Lower Temperature Rating	10 Degrees Celsius
Manufacturer	HMKIS
Minimum Operating Voltage	6 Volts
Model	HXK+FDJ
Part Number	HMKIS
Power Source	Battery Powered
Specification Met	Accurate and reliable reading, Easy calibration for stones of different sizes
Style Name	Compact
Unit Count	1.0 Count
Upper Temperature Rating	30 Degrees Celsius

Reviews

M**J

Great Product

This product is a fantastic find! It's reasonably priced, making it accessible for most budgets without compromising on quality. The product is exactly as described, and its usefulness cannot be overstated. I've found it to be incredibly practical and efficient in meeting my needs. The attention to detail is impressive, and the performance is on par with more expensive alternatives. If you're looking for something reliable, well-made, and at a fair price point, this is the perfect choice. Highly recommended!

11.05.2026

I**.

Die Lupe funktioniert nicht

Als wir das Gerät ausprobiert haben, mussten wir leider feststellen, dass die Lupe ihren Zweck nicht erfüllt. Der Gerät selbst ist in Ordnung. Wir wollten diesen Produkt zurück geben, nun leider wurde uns gesagt, dass wir den Rückversand erstmal selber übernehmen müssen. Die Sendung kam aus USA und den Rückversand hätte uns noch 50€ gekostet, von daher haben wir diesen Artikel behalten. Ich wollte den Verkäufer gerne kontaktieren, aber dies ist auch nicht möglich.....

25.03.2023

م**ي

مجموعة قيمة

Very nice, good material

11.12.2021

O**?

Super

Super article, fonctionne super bien. Je recommande.

30.03.2026

K**K

Don’t buy

1.06.2025

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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€ 69.08

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

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