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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HMKIS Diamond Tester Pen, USB Powered Diamond Selector (Non-Rechargeabe)

Product ID: 719086838

💎Accurate diamond authenticity detection

📊Clear LCD & LED indicators

🔋Dual power modes (Type-C & 9V)

€ 19.49

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered 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 Slovakia.

Secure transaction

Description

💎 Test Like a Pro, Shine Like a Boss!

SMART ERROR ALERTS - Flashing or shutdown signals prevent false readings from improper contact.
USER FRIENDLY DESIGN - No expertise needed—simple steps to authenticate diamonds confidently.
PRECISION POWER UPGRADE - Type-C USB ensures stable voltage for unmatched testing accuracy.
VERSATILE TESTING MODES - Large/small diamond size switches adapt to any gemstone with ease.
RAPID DIAMOND VERIFICATION - Instant audible and visual alerts confirm genuine diamonds in seconds.

The HMKIS Diamond Tester Pen is a USB-powered, non-rechargeable device designed for quick, precise diamond authenticity testing. Featuring dual power options (Type-C and 9V), an intuitive LCD and LED display, and audible alerts, it empowers both novices and experts to confidently verify diamonds with ease and reliability.

Common Questions

Are the products genuine and authentic?+

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.

How long does delivery take and is it reliable?+

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.

What is Desertcart? Is it safe to order from?+

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

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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€ 19.49

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered 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 Slovakia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

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Best Sellers Rank	#114,750 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #37 in Jewelry Diamond Testers
Customer Reviews	3.7 out of 5 stars 90 Reviews

HMKIS Diamond Tester Pen, USB Powered Diamond Selector (Non-Rechargeabe)

Description

Specifications

Common Questions