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GAIN EXPRESS Diamond Tester Pen, Professional Diamond Moissanite Gemstone Tester with UV Ultraviolet Light & Thermal Sensor, Gem Checker Jewelry Tester Diamond Selector for Novice and Expert

Name: GAIN EXPRESS Diamond Tester Pen, Professional Diamond Moissanite Gemstone Tester with UV Ultraviolet Light & Thermal Sensor, Gem Checker Jewelry Tester
Brand: Gain Express
SKU: 49635203
Price: 157.15 EUR
Availability: InStock
Rating: 4.2 (10 reviews)

Product ID: 49635203

💎Precision diamond detection

🔋Low power, long use

🔦UV fluorescence testing

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

€ 157.15

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered 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 Cyprus.

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Description

💎 Spot the real sparkle before anyone else does!

COMPLETE PRO KIT - Includes vinyl pouch, testing platform, and detailed manual for novices & pros.
COMPACT POWER EFFICIENT - Lightweight design with low battery consumption and AC adaptor option.
FLUORESCENT UV LIGHT SENSOR - Reveals gemstone fluorescence for expert-level verification.
INSTANT ONE BUTTON OPERATION - Quickly identifies stones as small as 2pt—no guesswork needed.
UNMATCHED AUTHENTICITY ASSURANCE - Detects real diamonds vs. moissanite & CZ with pinpoint accuracy.

The GAIN EXPRESS Diamond Tester Pen is a professional-grade tool designed for both novices and experts to accurately distinguish genuine diamonds from simulants like moissanite and cubic zirconia. Featuring advanced UV fluorescence testing, thermal sensors, and audible alerts, it offers precise results with a compact, power-efficient design. This all-in-one kit includes essential accessories, making it the ultimate gem verification device for jewelers, pawn brokers, and enthusiasts alike.

Specifications

ASIN	B00MNEB0U0
Batteries Required?	No
Batteries included?	No
Battery Cell Type	Alkaline
Battery description	Batería 9v
Best Sellers Rank	88,556 in DIY & Tools ( See Top 100 in DIY & Tools ) 182 in Multi Testers
Customer Reviews	3.8 3.8 out of 5 stars (162)
Date First Available	5 Sept. 2014
Item Package Quantity	1
Item Weight	150 g
Item model number	JEM-II
Manufacturer	Gain Express Holdings Ltd.
Part Number	JEM-II
Power Source	Battery Powered
Product Dimensions	17.78 x 7.62 x 5.08 cm; 149.69 g
Style	Compact

Reviews

W**M

Good product for the price.

Very easy to use. Good price.

3.04.2025

H**Y

Good product

Worked better than I thought

16.02.2019

W**M

Easy to use

Good materials, look good, easy to use. Just tested on my wife diamond ring, the result is quite good.

30.01.2022

M**S

Fast and liable

Ir is a fine item

28.01.2020

W**!

Real Diamond Tester 💎

I rarely ever leave a review but for this I had to! It tests actual diamonds accurately! It also when tested on other minerals doesn’t tick off as if it’s the real thing unlike many of the cheap ones out there. This is the real deal.

13.12.2024

P**A

Discreto qualità prezzo

25.01.2026

G**R

Schnell seriös und zuverlässig

6.07.2025

A**O

This tester can’t tell the difference between diamonds and moissanite.

8.01.2026

Y**E

Magnifique, svp très fort.

1.04.2025

M**J

Does a amazing job , noise is annoying

21.11.2023

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

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