--- product_id: 259672598 title: "Diamond Tester Pen with 60X Jewelry Loupe (Non-Rechargeable)" brand: "hmkis" price: "$34.68" currency: USD in_stock: true url: https://www.desertcart.us/products/259672598-diamond-tester-pen-with-60x-jewelry-loupe-non-rechargeable store_origin: US region: United States of America --- # Thermal conductivity scale 1-9 Dual power: Type-C & 9V battery 60X LED magnification loupe Diamond Tester Pen with 60X Jewelry Loupe (Non-Rechargeable) **Brand:** hmkis **Price:** $34.68 **Availability:** ✅ In Stock ## Summary > 💎 Test like a pro, inspect like a boss — never miss a real diamond again! ## Quick Answers - **What is this?** Diamond Tester Pen with 60X Jewelry Loupe (Non-Rechargeable) by hmkis - **How much does it cost?** $34.68 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-diamond-tester-pen-with-60x-jewelry-loupe-non-rechargeable) ## 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 Size Selection:** Adjustable settings (S, M, L) tailor testing sensitivity for micro to large diamonds, eliminating false positives and boosting confidence. - • **Compact & User-Friendly:** Lightweight, pocket-sized design with intuitive touch panel—perfect for on-the-go professionals and hobbyists alike. - • **Precision Power Upgrade:** Type-C power supply ensures ultra-stable voltage for rock-solid diamond testing accuracy. - • **Rapid & Reliable Results:** Instant LCD & LED indicators with audible alerts let you verify diamond authenticity in seconds—no expertise needed. - • **Versatile Loupe Included:** 60X LED jeweler’s loupe for crystal-clear inspection of gems, antiques, and collectibles anywhere, anytime. ## Overview The HMKIS Diamond Tester Pen combines advanced thermal conductivity technology with dual power options (Type-C & 9V battery) to deliver fast, precise diamond authenticity testing. Paired with a powerful 60X LED jeweler’s loupe, it offers millennial professionals a sleek, portable solution for confident gem verification and detailed inspection—no specialized training required. Adjustable size settings and clear visual/audio feedback ensure reliable results across micro to large diamonds, making it an essential tool for jewelry managers, collectors, and enthusiasts aiming to stay ahead in the luxury market. ## Description Built for Micro-Diamonds & Tiny Gemstones. Detects even the smallest stones that normal testers miss. the device will display incorrect results when testing large objects If you don't know the specific size, you can use M first. Optimized for 1+ Carat Stones & Heavy Jewelry. Filters out minor environmental interference for rock-solid accuracy on large gems. the device will display incorrect results when testing small objects If you don't know the specific size, you can use M first. Comfirm: the size of the diamond is " S" Adjust the wheel to the CORRECT SIZE Level Meter ≥9 lights and emits sound Comfirm: the size of the diamond is " L" Adjust the wheel to the CORRECT SIZE Level Meter ≥9 lights and emits sound 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. The working environment temperature is preferably between 5-35℃ Need to be in a windless environment Do not get close to hot or cold objects Both the diamond tester and the diamond need to wait for more than 1 minute. Do not hold the diamond in your hands (your hands are hot) There should be no water, grease, etc. on the diamond surface When the diamond size is less than 0.025ct, the diamond tester light bar cannot reach the red area When the diamond size is less than 0.015ct, the diamond tester light bar will not respond This diamond tester cannot distinguish between moissanite and diamond The device can only judge thermal conductivity through heat transfer, and the thermal conductivity of the two is close. Material: ABS pocket microscope. Size: 3.5 x 4 x 2 cm coin magnifier. Illuminated by LED. Bright LED light of the Magnifying Glass provides enough light at any dim conditions currency detecting microscope. Compact design provides 60X magnification magnifier for currency. The diamond tester helps to identify real and fake diamonds, as well as other jade. Jewelers Loupe helps to zoom in on diamond jade details. ## 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 | #2,318 in Arts, Crafts & Sewing (See Top 100 in Arts, Crafts & Sewing) #1 in Jewelry Diamond Testers | | Brand Name | HMKIS | | Color | Black | | Customer Reviews | 4.0 4.0 out of 5 stars (8,573) 4.0 out of 5 stars | | Global Trade Identification Number | 09070190994879 | | Included Components | 60X Microscope | | Item Dimensions | 10.16 x 2.17 x 1.38 inches | | Item Highlight | Based on High Thermal Conductivity of Diamonds. Powered by USB or 9V Battery Diamond Selector for Novice and Expert | | Item Weight | 120 g | | Lower Temperature Rating | 5 °C | | Manufacturer | HMKIS | | Maximum Operating Voltage | 9 volts | | Measurement Type | Thermal Conductivity Scale (1-9) | | Minimum Operating Voltage | 5 volts | | Model | HXK+FDJ | | Number Of Items | 5 | | Number Of Packs | 1 | | 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 Count | | Upper Temperature Rating | 30 °C | ## Product Details - **Brand:** HMKIS - **Color:** Black - **Item Weight:** 120 g - **Power Source:** Battery Powered ## Images ![Diamond Tester Pen with 60X Jewelry Loupe (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-diamond-tester-pen-with-60x-jewelry-loupe-non-rechargeable](https://www.desertcart.us/products/259672598-diamond-tester-pen-with-60x-jewelry-loupe-non-rechargeable) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-10-31*