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๐ Test Like a Pro, Shine Like a Boss!
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 includes a 60X LED jewelerโs loupe for detailed gem inspection and offers quick, user-friendly diamond authenticity verification with clear LCD, LED, and audible signals. Ideal for novices and experts alike, this compact kit ensures confident, on-the-spot diamond evaluation.









| ASIN | B08MTG5NHJ |
| Best Sellers Rank | #1,126 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #1 in Jewelry Diamond Testers |
| Brand | HMKIS |
| Brand Name | HMKIS |
| Color | Black |
| Customer Reviews | 4.1 out of 5 stars 8,230 Reviews |
| Global Trade Identification Number | 09070190994879 |
| Included Components | 60X Microscope |
| Item Dimensions | 10.16 x 2.17 x 1.38 inches |
| Item Weight | 120 Grams |
| Item dimensions L x W x H | 10.16 x 2.17 x 1.38 inches |
| 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 | 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. Style 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. See more |
| 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 |
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