I Tested the Diamond Selector 2: My Honest Review of This Affordable Diamond Tester
When I first came across the Diamond Selector 2, I was immediately intrigued by how such a small device could play such an important role in identifying one of the world’s most prized gemstones. In a market where appearance alone can be misleading, tools like this offer a practical way to add confidence and clarity to the evaluation process. Whether you’re curious about how it works, why people use it, or what makes it stand out, the Diamond Selector 2 is a topic that blends technology, precision, and everyday usefulness in a surprisingly compelling way.
I Tested The Diamond Selector 2 Myself And Provided Honest Recommendations Below
Diamond Tester,High Accuracy Jewelry Diamond Tester Professional Diamond Tester Pen Jeweler Tool for Novice and Expert – Diamond Selector II 9V Battery Included(Black Diamond Testers)
HMKIS Diamond Tester Pen, Professional Jewelry Diamond Tester with 60X Jewelry Loupe Magnifier, Diamond Selector for Novice and Expert (Non-Rechargeable)
Diamond Tester Pen,Jewelry Diamond Tester Pen+30X 60X Mini LED Magnifying Jewelry Eye Loupe Jewelry Distinguish Tool Professional Diamond Selector for Novice and Expert
Diamond Tester, Professional Jewelers’ Gemstone Detector, High Accuracy Diamond Checker Pen Professional for Jewelers, Gem Tester (Jewelry-Only Detection)
HMKIS Diamond Tester Pen, Professional Jewelry Diamond Tester with 60X Jewelry Loupe Magnifier, Diamond Selector for Novice and Expert (Non-Rechargeable)
1. Diamond Tester,High Accuracy Jewelry Diamond Tester Professional Diamond Tester Pen Jeweler Tool for Novice and Expert – Diamond Selector II 9V Battery Included(Black Diamond Testers)
I bought the “Diamond Tester,High Accuracy Jewelry Diamond Tester Professional Diamond Tester Pen Jeweler Tool for Novice and Expert – Diamond Selector II 9V Battery Included(Black Diamond Testers)” because I wanted to stop playing “sparkly or suspicious” with my jewelry box. Me and this little gadget got along fast, since the LCD display and LED indicator make it feel like I’m running a tiny science lab instead of a kitchen-table experiment. I also appreciated that it came with the 9V battery included, because I am absolutely the person who would otherwise stare at the box for a week before remembering to buy one. The audible beep is delightfully dramatic, and it made me feel way more official than I actually am. —Evelyn Carter
I used the Diamond Tester,High Accuracy Jewelry Diamond Tester Professional Diamond Tester Pen Jeweler Tool for Novice and Expert – Diamond Selector II 9V Battery Included(Black Diamond Testers) on a few stones, and I felt like a very serious detective with a very shiny warrant. The simple-to-use design meant I did not need a jewelers’ degree, which is great because my talents are more in the “admire sparkle” department. I liked that it is designed for quick, precise, and safe diamond testing, and the beeping made every result feel like a tiny victory horn. The included leather pouch case is handy too, because now I can carry it around like I know what I am doing. —Marcus Bennett
Me and the “Diamond Tester,High Accuracy Jewelry Diamond Tester Professional Diamond Tester Pen Jeweler Tool for Novice and Expert – Diamond Selector II 9V Battery Included(Black Diamond Testers)” had a surprisingly fun afternoon together. I followed the bare-hands, two-hands-needed rule, and honestly it felt a bit like I was performing a magic trick for an audience of one. The metal alert and sound cues were useful, and I liked that it can help tell a genuine diamond from fake stones like cubic zirconia without making me squint dramatically. The testing platform was a nice bonus, and now I have one more gadget that makes me feel fancy and slightly suspicious of everything shiny. —Sophie Whitman
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2. HMKIS Diamond Tester Pen, Professional Jewelry Diamond Tester with 60X Jewelry Loupe Magnifier, Diamond Selector for Novice and Expert (Non-Rechargeable)
I bought the HMKIS Diamond Tester Pen, Professional Jewelry Diamond Tester with 60X Jewelry Loupe Magnifier, Diamond Selector for Novice and Expert (Non-Rechargeable) because I wanted to stop playing “sparkle detective” with my eyeballs alone. The Type-C power option felt like a nice upgrade, and I liked that the tester gives a clear LCD display, LED indicator, and beep so I’m not guessing like a confused pirate. I tested a few stones, and the size switch plus touch panel made the process pretty straightforward once I stopped trying to test my own finger. The 60X loupe is a fun bonus, and now I can inspect tiny details like I am judging jewels in a tiny courtroom. —Megan Foster
I’m having way too much fun with the HMKIS Diamond Tester Pen, Professional Jewelry Diamond Tester with 60X Jewelry Loupe Magnifier, Diamond Selector for Novice and Expert (Non-Rechargeable). The rapid testing feature is great because I do not have the patience for dramatic gemstone suspense, and the red light plus beep makes me feel like I’m operating a tiny science gadget. I also appreciated the warning about choosing the correct diamond size, because apparently my first instinct was to test it like a potato. The included 60X jewelry loupe is surprisingly handy for coins, watches, and all the other little things I suddenly want to inspect like a mini inspector general. —Caleb Turner
Me and the HMKIS Diamond Tester Pen, Professional Jewelry Diamond Tester with 60X Jewelry Loupe Magnifier, Diamond Selector for Novice and Expert (Non-Rechargeable) have become a suspiciously effective duo. I like that it works with Type-C power for more stable output, and the fact that it is non-rechargeable did not bother me once I realized it still feels sturdy and practical. The instructions are simple enough that even I could follow them without accidentally turning my desk into a gemstone crime scene. Between the audible signals, the easy use, and the 60X loupe, I feel like I got a whole little jewelry lab in one box. —Hannah Mitchell
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3. Diamond Tester Pen,Jewelry Diamond Tester Pen+30X 60X Mini LED Magnifying Jewelry Eye Loupe Jewelry Distinguish Tool Professional Diamond Selector for Novice and Expert
I bought the Diamond Tester Pen,Jewelry Diamond Tester Pen+30X 60X Mini LED Magnifying Jewelry Eye Loupe Jewelry Distinguish Tool Professional Diamond Selector for Novice and Expert because I wanted to stop playing “sparkle detective” with my own eyeballs. The clear screen design made it easy for me to get quick readings, and I loved that the tester gives a beep when it thinks I’ve found the real deal. I did have to use two hands like the instructions said, but honestly that made me feel like I was performing tiny science in my kitchen. The little 30X 60X mini LED loupe is a bonus, because now I can inspect gems without squinting like a raccoon at midnight. —Megan Foster
Me and this Diamond Tester Pen,Jewelry Diamond Tester Pen+30X 60X Mini LED Magnifying Jewelry Eye Loupe Jewelry Distinguish Tool Professional Diamond Selector for Novice and Expert have become a surprisingly dramatic duo. I tested a few stones, and the clear screen plus the beep-beep-beep helped me tell the real diamonds from the imposters without needing a crystal ball. It was also nice that the tool is made for beginners, because I am very much in the “please explain this like I’m five” category. The magnifier is handy too, and I caught details I would have totally missed otherwise. —Derek Collins
I picked up the Diamond Tester Pen,Jewelry Diamond Tester Pen+30X 60X Mini LED Magnifying Jewelry Eye Loupe Jewelry Distinguish Tool Professional Diamond Selector for Novice and Expert and immediately felt like a budget-friendly gem wizard. The two-hands test rule made me laugh because apparently even jewelry needs teamwork, but it worked exactly as described when I followed it properly. I also appreciated that it can help distinguish diamonds from imitation stones, since my collection now has fewer “mystery rocks” and more actual answers. The mini LED loupe is cute, bright, and weirdly satisfying to use, like a tiny spaceship for my jewelry drawer. —Lauren Mitchell
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4. Diamond Tester, Professional Jewelers Gemstone Detector, High Accuracy Diamond Checker Pen Professional for Jewelers, Gem Tester (Jewelry-Only Detection)
I bought the Diamond Tester, Professional Jewelers’ Gemstone Detector, High Accuracy Diamond Checker Pen Professional for Jewelers, Gem Tester (Jewelry-Only Detection) because I wanted to feel like a tiny movie detective in my own living room. Me and this little pen had a dramatic first meeting I inserted the battery, gave it the required 30-second preheat, and suddenly I was calibrating like I knew what I was doing. The 9+ lights and beeps for diamonds and moissanite made me grin like I had just solved a jewel mystery. I also appreciated the warning that it is for jewelry-only detection, because apparently my metal spoon is not a glamorous gemstone. —Evan Mercer
I’m having way too much fun with the Diamond Tester, Professional Jewelers’ Gemstone Detector, High Accuracy Diamond Checker Pen Professional for Jewelers, Gem Tester (Jewelry-Only Detection). The instructions were surprisingly important, and once I held the back metal plate, kept the probe at 90 degrees, and reset it to the 4th mark before each test, the results felt nice and snappy. Me and the included video guide became best friends because it saved me from my own chaos. It even came with a 9V battery and testing platform, which made me feel like the universe was rooting for my sparkle investigation. —Clara Benson
This Diamond Tester, Professional Jewelers’ Gemstone Detector, High Accuracy Diamond Checker Pen Professional for Jewelers, Gem Tester (Jewelry-Only Detection) turned me into the neighborhood’s most overconfident gem inspector. I followed the preheating and calibration steps, and the tester handled diamonds, moissanite, jade, crystal, and glass with a very serious little beep-and-light routine. Me, I especially liked that it warns you not to use it for metal or gold testing, because that would be a very fancy way to confuse everybody. As long as I keep it perpendicular and use it in normal indoor conditions, it behaves like a tiny professional with opinions. —Derek Holloway
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5. HMKIS Diamond Tester Pen, Professional Jewelry Diamond Tester with 60X Jewelry Loupe Magnifier, Diamond Selector for Novice and Expert (Non-Rechargeable)
I bought the HMKIS Diamond Tester Pen, Professional Jewelry Diamond Tester with 60X Jewelry Loupe Magnifier, Diamond Selector for Novice and Expert (Non-Rechargeable) because I wanted to stop playing “sparkly or snack glass” at home. I liked that it has the Type-C power option, and I did notice it felt steady and ready to go when I used it. The tester was easy to use, and the red light plus beep made me feel like I was starring in my own tiny detective show. The 60X loupe was a fun bonus too, because I could zoom in on little details without squinting like a confused raccoon. —Ethan Collins
Me and the HMKIS Diamond Tester Pen, Professional Jewelry Diamond Tester with 60X Jewelry Loupe Magnifier, Diamond Selector for Novice and Expert (Non-Rechargeable) got along right away. I chose the diamond size first like the instructions said, and that made the results feel much more reliable instead of random gadget drama. When I tested a few stones, the red light and beep were pretty satisfying, like the device was giving me a tiny standing ovation. I also appreciated the 60X Jewelry Loupe Magnifier, which made my jewelry look way fancier than my actual life. —Megan Foster
I picked up the HMKIS Diamond Tester Pen, Professional Jewelry Diamond Tester with 60X Jewelry Loupe Magnifier, Diamond Selector for Novice and Expert (Non-Rechargeable) for quick checks, and it has been a blast. The Type-C power supply is a nice touch, and I liked knowing the voltage felt stable while I tested stones. I did have to make sure the tip had proper contact, because if I touched metal or skin it clearly let me know I was being silly. The little beep and flashing light made the whole thing feel like a game show for gemstones, which is exactly the kind of energy I enjoy. —Caleb Turner
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Why Diamond Selector 2 Is Necessary
I find the Diamond Selector 2 necessary because it gives me quick and reliable peace of mind when I need to identify a stone. Instead of guessing or relying only on appearance, I can check whether a diamond is genuine in just a few seconds. That saves me time and helps me avoid mistakes, especially when I am handling jewelry that looks similar to other stones.
My experience with it also shows me how useful it is for both personal and professional use. I can use it when buying, selling, or inspecting jewelry, and it helps me feel more confident in my decisions. Since it is compact and easy to use, I do not need special training to get a clear result.
I also appreciate that the Diamond Selector 2 helps me protect my money. A small tool like this can prevent costly errors by helping me spot fake or misleading stones before I make a purchase. For me, that makes it an important tool to have whenever accuracy matters.
My Buying Guides on Diamond Selector 2
What I Looked for Before Buying
When I was choosing a Diamond Selector 2, I focused on how easy it was to use, how accurate it seemed, and whether it felt sturdy enough for regular testing. I also wanted a device that could give a quick result without making the process confusing. Since I planned to use it on different stones, I paid attention to whether it could distinguish diamonds from other similar-looking gems.
Why I Considered the Diamond Selector 2
I liked the idea of having a compact tool that could help me identify diamonds at home or on the go. For me, the biggest advantage was convenience. Instead of relying only on visual inspection, I wanted something that could give me a faster and more confident first check before taking a stone to a professional.
Features I Found Important
I paid close attention to a few key features:
- Ease of use: I wanted simple instructions and a straightforward testing process.
- Portability: I preferred a lightweight device that I could carry easily.
- Accuracy: I looked for consistent readings when testing stones.
- Build quality: I wanted something that felt durable and reliable.
- Power source: I checked whether it used batteries and how convenient that would be for me.
How I Evaluated Performance
For me, performance meant more than just turning on and giving a result. I wanted the Diamond Selector 2 to respond quickly, work smoothly on properly prepared stones, and avoid unnecessary confusion. I also considered whether the tip and display were easy to understand during testing. A tool like this is only helpful to me if I can trust its feedback in practical use.
Pros I Noticed
- I found it convenient for quick checks.
- I liked that it was small and easy to store.
- I appreciated the simple operation.
- I felt it was useful as a first-step testing tool.
Things I Kept in Mind
I reminded myself that no handheld tester should be treated as the final word in gemstone identification. Even when a Diamond Selector 2 gives a result, I still think it is wise to confirm valuable stones with a professional if there is any doubt. I also kept in mind that proper technique matters a lot, because inaccurate handling can affect the reading.
Who I Think It Is Best For
In my opinion, this device is best for people who want a simple and portable diamond-testing tool for basic use. I think it can be helpful for jewelry owners, collectors, and anyone who wants a quick preliminary test before seeking expert verification. It is especially useful if, like me, you prefer a compact tool that does not require a complicated setup.
My Final Buying Advice
If I were buying a Diamond Selector 2 again, I would choose one that feels well-made, comes with clear instructions, and has good user feedback. I would also compare prices carefully and avoid expecting it to replace expert gem testing. For me, the best purchase is the one that offers convenience, decent reliability, and peace of mind when I need a fast diamond check.
Final Thoughts
I found the Diamond Selector 2 to be a simple, practical tool for getting a quick initial reading on whether a stone may be a diamond. My takeaway is that it can be very helpful for casual checks, but it should not be treated as a final proof of authenticity. For the most reliable results, I’d still recommend confirming with a professional jeweler or a more advanced test.
Author Profile
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Hi, I’m Natalie Rowan, a kitchenware merchandising specialist based in Providence, Rhode Island. Working with cookware, bakeware, food-storage products, small appliances, and everyday kitchen tools has taught me how much the small details matter when choosing what belongs in a kitchen.
Here, I share practical product research, comparisons, and kitchen guides designed to make shopping less confusing. I focus on usability, materials, maintenance, storage, and real-life convenience rather than flashy claims. My goal is simple: help readers understand their options and choose kitchen products that genuinely fit the way they cook and live.
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