--- product_id: 259672598 title: "HMKIS Diamond Tester Pen, Professional Jewelry Diamond Tester with 60X Jewelry Loupe Magnifier, Diamond Selector for Novice and Expert (Non-Rechargeable)" brand: "hmkis" price: "$40.21" currency: USD in_stock: true category: "Hmkis" url: https://www.desertcart.us/products/259672598-hmkis-diamond-tester-pen-professional-jewelry-diamond-tester-with-60x store_origin: US region: United States of America --- # Thermal conductivity scale 1-9 for precise diamond ID Dual power: Type-C & 9V for stable voltage 60X LED loupe for crystal-clear magnification HMKIS Diamond Tester Pen, Professional Jewelry Diamond Tester with 60X Jewelry Loupe Magnifier, Diamond Selector for Novice and Expert (Non-Rechargeable) **Brand:** hmkis **Price:** $40.21 **Availability:** ✅ In Stock ## Summary > 💎 Test Like a Pro, Shine Like a Boss ## Quick Answers - **What is this?** HMKIS Diamond Tester Pen, Professional Jewelry Diamond Tester with 60X Jewelry Loupe Magnifier, Diamond Selector for Novice and Expert (Non-Rechargeable) by hmkis - **How much does it cost?** $40.21 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/259672598-hmkis-diamond-tester-pen-professional-jewelry-diamond-tester-with-60x) ## 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 - • **Versatile 60X Loupe:** Illuminate and magnify gems, antiques, stamps, and more with powerful LED clarity. - • **Complete Testing Kit:** Includes tester pen, loupe, USB cable, platform, and manual—everything for confident appraisals. - • **User-Friendly Design:** No expertise needed—simple size selection and touch panel make testing foolproof. - • **Precision Power Upgrade:** Type-C power option ensures ultra-stable voltage for unmatched testing accuracy. - • **Rapid Diamond Verification:** Instant, reliable diamond authenticity results with clear LCD, LED, and audible alerts. ## Overview The HMKIS Diamond Tester Pen is a professional-grade, non-rechargeable diamond selector featuring dual power options (Type-C & 9V) for stable voltage output and precise thermal conductivity testing. It offers rapid, easy-to-interpret results via LCD, LED, and audible signals, making it perfect for novices and experts alike. Included is a 60X LED jeweler’s loupe for detailed inspection of gems and collectibles, packaged as a comprehensive kit for confident, on-the-go diamond verification. ## Description Buy HMKIS Diamond Tester Pen, Professional Jewelry Diamond Tester with 60X Jewelry Loupe Magnifier, Diamond Selector for Novice and Expert (Non-Rechargeable): Diamond Testers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - [Power Upgrade] The HMKIS diamond tester offers two power supply options: Type-C and 9V Power (includes a 1m Type-C cable). Utilizing a Type-C power supply delivers a more stable and precise voltage output, thereby enhancing the accuracy and reliability of experimental and test results. Opting for the Type-C power supply is highly recommended for optimal performance. PLZ NOTE THIS IS Non-Rechargeable ! - [Rapid Assurance] The Professional Diamond Selector II swiftly verifies the authenticity of diamonds with precise accuracy. Designed for quick and secure testing, this diamond selector features an LCD display, LED indicator, and large/small switches for testing diamonds. Audible signals provide further assistance in interpreting readings, ensuring a swift and confident evaluation process. - [Easy Use]The HMKIS Diamond Tester Pen is a user-friendly tool that eliminates the need for professional knowledge in diamond testing. With just a few simple steps, anyone can determine the authenticity of a diamond. By turning on the Diamond Tester Pen detector, selecting the diamond size, and placing the tip of the tester on the gemstone, users can easily identify whether the stone is a genuine diamond or if it is made of glass, crystal, or cubic zirconia based on the results. The red light and beep emitted by the diamond tester indicate the presence of a diamond, making it a convenient and easy-to-use tool for anyone in need of quick and accurate diamond testing. - [Jewelers Loupe] The 60X LED Jewelers Loupe with batteries is a versatile tool that can be used for a wide range of applications. Whether you are examining gems, coins, antiques, stamps, conducting readings, inspections, jewelry appraisals, studying rocks, watches, calligraphy, paintings, pursuing hobbies, collecting antiques, building models, working in the photo industry, testing electronic products, or simply using it for tasks in your home life or office, this Jewelers Loupe is an essential tool. Its compact design and powerful LED lights make it convenient for use in various settings, providing clear and detailed magnification for all your viewing needs. - [Adjust Size]:We have to choose the diamond size before using the diamond tester.Otherwise we may get the incorrect result. - [Touch Panel]: We have to touch the panel on the back when testing. Othersize we will get a wrong result. - [Incorrect Contact]: When we have incorrect contact, this diamond tester pen will have a flashing OR it will turn off. When you testing metal,skin,or something else. - [Warm Notice]:Make sure to test according to the correct testing procedure, avoid using the diamond tester on unsuitable items(metal,skin,water and ect.), to ensure accurate testing results. Any improper operation may affect the accuracy of the test. - [Package include]:1 x Diamond Tester Pen, 1X 60XJewelers Loupe,1x 1M USB Cabel,1 x Testing Platform,1 x User Manual ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08MTG5NHJ | | Best Sellers Rank | #990 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #1 in Jewelry Diamond Testers | | Brand Name | HMKIS | | Color | Black | | Customer Reviews | 4.1 4.1 out of 5 stars (8,341) | | Global Trade Identification Number | 09070190994879 | | Included Components | 60X Microscope | | Item Dimensions | 10.16 x 2.17 x 1.38 inches | | Item Weight | 120 Grams | | Lower Temperature Rating | 5 Degrees Celsius | | Manufacturer | HMKIS | | Maximum Operating Voltage | 9 Volts | | Measurement Type | Thermal Conductivity Scale (1-9) | | Minimum Operating Voltage | 5 Volts | | Model | HXK+FDJ | | Part Number | HMKIS | | Power Source | Battery Powered | | Specification Met | CE, RoHS | | Style Name | Appraising jewelry, gemstones, unique rocks, calligraphy, paintings, antiques, and other collectibles, as well as offering expert evaluations for gems, fine jewelry, diamonds, coins, stamps, and watches. | | Unit Count | 1.0 Count | | Upper Temperature Rating | 30 Degrees Celsius | ## Product Details - **Brand:** HMKIS - **Color:** Black - **Item Weight:** 120 Grams - **Power Source:** Battery Powered ## Images ![HMKIS Diamond Tester Pen, Professional Jewelry Diamond Tester with 60X Jewelry Loupe Magnifier, Diamond Selector for Novice and Expert (Non-Rechargeable) - Image 1](https://m.media-amazon.com/images/I/61aVeFSmXyL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: Why do I get diamonds in almost everything I test?** A: 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. **Q: Why does my device barely respond when I test diamonds?Why not work?** A: The L setting is specifically designed for large diamonds. If you use this setting to test small diamonds, the device will barely react. **Q: What should I do if I don't know the exact size of the diamond?** A: You can start by testing with the M setting. The M setting is for testing diamonds between 0.5 and 1 carat. ## Frequently Bought Together - HMKIS Diamond Tester Pen, Professional Jewelry Diamond Tester with 60X Jewelry Loupe Magnifier, Diamond Selector for Novice and Expert (Non-Rechargeable) - Weigh Gram 200g Digital Pocket Gram Scale 0.01g Accuracy, 200g x 0.01g Mini Digital Grams Scale, Small Food Scale, Jewelry Scale, Ounces Grains Scale With100g Calibration Weight --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/259672598-hmkis-diamond-tester-pen-professional-jewelry-diamond-tester-with-60x](https://www.desertcart.us/products/259672598-hmkis-diamond-tester-pen-professional-jewelry-diamond-tester-with-60x) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-14*