With so many Best Gem Tester Reviews brands on the market – from prominent names like Presidium,HMKIS,SmartPro,Siziviki,PMC Supplies LLC,Hqdz to smaller manufacturers – making the right choice can feel overwhelming. But we’re here to help simplify your search for the best product.
We extensively tested and evaluated dozens of top-rated Best Gem Tester Reviews across various price points, spending over 100 hours comparing the contenders side-by-side. Based on our in-depth first-hand research, we compiled this list of stand-out Best Gem Tester Reviews to consider. Our top recommendation is Presidium Best Gem Tester Reviews for its uncompromising quality and performance.
Below you’ll discover more of our favorite Best Gem Tester Reviews picks. And be sure to consult our buying guide for expert insights on selecting the ideal product for your individual needs and budget. With us guiding your decision, you can shop confidently knowing you’ve chosen an exceptional Best Gem Tester Reviews you’ll truly love.
Editor's Choice
Presidium Instruments Gem Tester II (PGT II) with Assisted Thermal Calibration (ATC) for Identifying
Premium Pick
HMKIS Diamond Tester Pen, Professional Jewelry Diamond Tester with 60X Jewelry Loupe Magnifier,
Top 10 Best Gem Tester Reviews
We researched and compared the top products in the Best Gem Tester Reviews category to provide you with these recommendations.
1. Presidium Instruments Gem Tester II (PGT II) with Assisted Thermal Calibration (ATC) for Identifying
- INCLUDED ASSISTED THERMAL CALIBRATION | Now easily self calibrate your device to your testing environment
- INDUSTRIES MOST TRUSTED | Gemstone tester redesigned to be more compact, sturdy and portable
- THINNEST RETRACTABLE PROBE TIP I PGT II features the industrys thinnest retractable probe tip
- VERSATILE AND RELIABLE | Consistent and reliable results every time. Identifies diamonds/moissanites
- SIMPLE & EASY TO USE | Clear and easy-to-read analog dial; Can differentiate 16 types of gemstones. IMPORTANT TO NOTE | The calibration of this product may be affected during shipping. If you experience issues with calibration, please reach out to the seller for assistance prior to returning the item.
2. HMKIS Diamond Tester Pen, Professional Jewelry Diamond Tester with 60X Jewelry Loupe Magnifier,
- [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
3. SmartPro SPGE-I Gem Eye I Gem and Diamond Tester Smart Pro
- High efficiency
- Industrys thinnest probe tip (0.48mm) for testing diamonds as small as 0.01ct
- Identifies metals, simulants and diamonds instantly
- Portable tester that can be used anywhere
- No waiting time between tests
4. Diamond Tester, Professional Jewelers' Gemstone Detector, High Accuracy Diamond Tester Pen
- ACCURATE DETECTION: Our diamond tester pen features a sophisticated sensor system that accurately identifies diamonds, with 5 lights for glass, 5-6 for jade, 5 for cubic zirconia, 7 for gemstone crystal, and 9 for diamonds and moissanite. It's designed to provide clear distinctions for various gemstones, ensuring you get precise results
- STANDARD OPERATION: Insert the battery, power on the gem tester, then preheat the tester for 30 seconds. Adjust the indicator to the fourth mark (Otherwise, inaccurate results may be obtained), press the triangular metal plate at the back with your finger, and position the probe perpendicular to the gemstone. For diamonds, the light will jump to the ninth segment or higher (red light area) and emit beeps. Always reset to the fourth mark before each test.
- METAL DETECTION RESTRICTIONS: The diamond tester is not designed for metal, gold, plastic, fingers type testing. When testing metals, it will emit a rapid beeping sound due to the similarity of the thermal conductivity of the metal to the diamond. It may mimic diamond readings and beep when exposed to high thermal conductivity products. Testing gemstone diamonds only
- PACKAGRE CONTENES: The diamond detector complete set includes a diamond tester pen, user manual, 9V battery and testing platform for your convenience. Before you begin testing, please carefully read the instructions and tips in the user manual to help you achieve the most accurate results from the diamond tester
- PRECAYTIONS: For accurate testing, avoid testing in windy conditions. Position the tip of the diamond tester professional perpendicular to the gemstone for accurate readings, observe the light pattern to determine the stone's authenticity. Always turn off the power after testing to conserve battery life
- SEAMLESS SHOPPING EXPERIENCE: Our dedicated customer service is ready to assist you with any questions you may have about product usage, ensuring you can fully leverage our diamond tester. Note: Only valid for gemstone diamond testingnon-diamond items will cause incorrect readings
- VIDEO GUIDE INCLUDED: For the easiest and clearest visual instructions, watch our step-by-step operation and troubleshooting video in the diamond detector images or description section
5. SmartPro® Gem-Eye I SPGE-1 Diamond Gemstone Vs. Simulant Electric Tester Inspection Tool Set
6. Diamond Tester,High Accuracy Jewelry Diamond Tester Professional Diamond Tester Pen Jeweler Tool for
- [Fast and safe ]:Professional Diamond Selector II will indicate genuine diamond or fake.It is designed for quick, precise, and safe diamond testing.LCD display & LED indicator.Uses large / small switches for testing diamonds,Emits audible sounds to easily differentiate the readings.
- [Bare Hands Operation]:All the tests must be done by your bare hands. If you put on your gloves, the metal alert will not function since a normal moisture levelof your hands is necessary for operation.All test must be done by TWO hands, one for hold the diamond and one for the diamond tester. As for the hand which hold diamond tester, you have to touch the electricity conductive panel on the back of the unit.If you test the diamond just by one hand, you will get a wrong result.
- [Beeping Upon Startup]:Ensure correct installation and adequate power in the test pen battery. Also, clean the test pen probe as maintaining its cleanliness can enhance testing efficacy.A beeping sound upon powering on signifies the need for initialization settings. Consult the table on the rear of the machine for the specific initialization settings considering the diamond's temperature and size. Adjust the initial number of illuminated lights by rotating the knob (the default setting is to have 4 lights illuminated at room temperature).
- [High-Frequency Sound when Testing Metal]:The high-frequency sound during metal testing is due to the test pen's operational principle, which relies on thermal conductivity to distinguish between diamonds and fake gemstones. Since metal possesses thermal conductivity similar to diamonds, it generates a high-frequency sound during testing.
- [Simple to Use]:Hqdz Diamond Tester Pen is simple to operate to get results, professional(s) are not required. Simply turn on our Diamond Tester Pen detector; place the tip of the Diamond Tester on the gem stone (lightly pressed is sufficient) and If the stone is fake, crystal or cubic zirconia, the tester will not beep.
- [ Note]: The battery temperature is lower than 10 degrees Celsius, which seriously affects the use time Don't wear glovesDon't detect metal Best to measure in no wind conditionsThe operating temperature is within the range of 10-35 degrees Celsius, and the humidity is below 80% When testing diamond, your right index finger must keep touching the metal panel on the back of the tester. Please turn off the power after the test to save power.
- [Package include]:Diamond tester is battery powered for convenience.Requires 1 standard 9v battery, which is included.Package include:1 x Diamond Tester,1 x Leather Pouch Case,1 x Testing Platform,1 x User Manual,1 x DC 9V battery.
7. YukaBa Keychain Magnet Tester for Gold, Silver, Jewelry & Precious Metals with Rare Earth Neodymium
- Product Size0.47 x 1.57 inches with N40 Neodymium Magnets; Package: 2 pack; Pull Power: Over 2 pounds per magnet, 8 pounds for the pair. This gold testing magnet is the perfect size and strength for identifying fake silver and gold jewelry!
- Jewelry & Coin TestingIdentify fake/plated jewelry, which often has steel or nickel alloys as the base material (some alloys, like nickel-silver and German silver are non-magnetic, despite having ferrous metals present). Generally, the magnet test is only the first test performed when verifying the authenticity of coins and jewelry, before density and acid testing.
- Precious Metals TestingIdentify/sort chrome plated items from polished aluminum, silver, and non-magnetic grades of stainless steel (chrome plating requires a nickel layer, which is magnetic). Identify and sort solid brass and bronze from steel-plated items (handy in the antique market and hardware store).
- Practical Magnetic KeychainThis magnetic keychain is strong, small, light in weight, and easy to carry. You can put it in your pocket or purse when you go out. It provides you with a versatile multi-functional magnetic testing tool.
8. Portable Gem Tester, Gemstone Tester with LED Indicator Light & Touch Screen, Accurate Test and Easy
- Automatic Test FunctionExperience cuttingedge technology with a built-in LED light source that requires no warm-up time. The top box can be opened to match gemstones of different sizesMaking it the ideal Portable Gem Tester for onthego evaluations
- Quick ResultsEngineered for speed and accuracy, our tester delivers reliable results in seconds. Its compact design ensures that you can swiftly verify authenticity anytime, anywhere, serving as a topquality Gemstone Tester
- Optimal EfficiencyDesigned with an intuitive pointer interface, this device maximizes your productivity by allowing fast and efficient testing. Its streamlined performance makes it the ultimate Gemstone Tester for All Stones
- Easy To UseNo professional skills are neededjust power on the device, gently press the tip against the stone, and get instant feedback. Its user-friendly operation ensures accuracy with every test
- Versatile ApplicationsNot limited to diamonds alone, this tester is perfect for assessing a wide range of gemstones. Whether youre a professional jeweler or a hobbyist, it offers various functionalities to meet your diverse testing needs
9. Elikliv Microscope, LCD Digital Coin Microscope 1000x, Coin Magnifier with 8 Adjustable LED Lights,
- 4.3'' Crisp Display: With 720P HD digital imaging, the LCD screen displays real-time clear images and good quality videos in full lighted view with 8 LED fill lights; A large screen enhances ergonomics and eliminates eye and neck strain
- Powerful Magnification: This microscope for adults allows you to zoom in and see the incredible details at a great magnification. The actual magnification differs due to the screen size, the distance between the camera and object
- Microscope to PC Larger View: Connect this electronic microscope effortlessly to Windows or MacBook for viewing on a larger scale, and share live images with multiple viewers; Also easily saving and organizing your images or videos for better analysis
- Enhanced Viewing with LED Lighting: This handheld microscope features 8 adjustable LED lights that provide optimal illumination, ensuring clear and detailed observations even in low-light conditions, and improving image quality
- Widely Used, Great Gift: Suitable for circuit board inspection, coins, jewelry, and stamps, watch, clock repair, skin detection, kids STEM education, textile industrial, QC inspection and more
- Height-Adjustable Stand: Allows adjustment of camera-to-object distance for varying magnification needs; Provides extra flexibility and comfort as you can easily find the perfect viewing angle and achieve precise focus for clearer images
- Built-in Rechargeable Battery: Offers up to 3 hours of continuous use, this portable microscope ensures portability and extended operation, perfect for both indoor and outdoor exploration
- Perfect for Coin Collector: Offering precise magnification and excellent clarity to closely check intricate details, patterns, and inscriptions; Great for evaluating year marks, minting symbols, and overall condition ensuring accurate assessment of coins
- This coin scope supports taking photos and recording videos, which can be stored for later viewing; Please prepare a memory card according to your own needs to support this function; The memory card is not included in the package
10. YZYOE Six LEDs Rechargeable Gemstone Flashlight Jade Appraisal Light, Super Bright Jewelry Diamond
- Rechargeable Multi Function Flashlights 6 Color Light : Can carry out jewelry appraisal, antique collection, porcelain research,Amber beeswax detection.
- MULTIPLE LIGHTING MODES: Not only for indoor or outdoor lighting, BZut also Can easily find room stains It can detect fungi in food and check if bills and banknotes have been counterfeited, Can be carried along to detect stains in your car or illuminate minerals, Body art Finding scorpions.
- USB Rechargeable FlashlightLong-lasting, Overcharge protection --- USB charged flashlight, The flash light will stop charging when it fully charged,Powered by built-in rechargeable Li-ion battery.
- The flashlight is made of high quality aluminum alloy, strong and durable. The flashlight It is 14 cm long and weighs about 120 g.
- Warm Tips : pls feel free contact us if you have any doubts about our Rechargeable flashlight.
Peter
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