20 Best Diamond Detector [2025]

Are you looking for the best diamond detector? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling diamond detector.

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1 HMKIS Diamond Tester Pen, High Accuracy Jewelry Diamond Tester+ 60X Mini LED Magnifying,... HMKIS Diamond Tester Pen, High Accuracy Jewelry Diamond Tester+ 60X Mini LED Magnifying,...
2 Diamond Tester Pen, High Accuracy Jewelry Diamond Tester+200g/0.01g Mini Jewelry Scale+60X Mini... Diamond Tester Pen, High Accuracy Jewelry Diamond Tester+200g/0.01g Mini Jewelry Scale+60X...
3 [Upgraded] Diamond Tester Pen, High Accuracy Jewelry Diamond Teste Portable Electronic Diamond... [Upgraded] Diamond Tester Pen, High Accuracy Jewelry Diamond Teste Portable Electronic Diamond...
4 High Accuracy Diamond Tester Professional Diamond Tester Pen Jeweler Tool for Novice and Expert -... High Accuracy Diamond Tester Professional Diamond Tester Pen Jeweler Tool for Novice and Expert -...
5 Diamond Tester Pen+60X Mini LED Magnifying,High Accuracy Jewelry Diamond Tester Tool,Environmental... Diamond Tester Pen+60X Mini LED Magnifying,High Accuracy Jewelry Diamond Tester...
6 GER Detect Diamond Hunter Ground Penetrating Radar, Professional Metal Detector, Highly Precise... GER Detect Diamond Hunter Ground Penetrating Radar, Professional Metal Detector, Highly Precise...
7 Presidium Multi Tester III (PMuT III) All-In-One Instrument for Testing Diamonds, Moissanites and... Presidium Multi Tester III (PMuT III) All-In-One Instrument for Testing Diamonds, Moissanites and...
8 SmartPro SPGE-I Gem Eye I Gem and Diamond Tester Smart Pro SmartPro SPGE-I Gem Eye I Gem and Diamond Tester Smart Pro
9 Diamond Tester, Diamond Detector, Diamond Tester Pen, Diamond Tester Professional, Diamond Detector,... Diamond Tester, Diamond Detector, Diamond Tester Pen, Diamond Tester Professional, Diamond...
10 Best High Accuracy Diamond Tester Professional Jeweler for Novice and Expert - Diamond Selector II... Best High Accuracy Diamond Tester Professional Jeweler for Novice and Expert - Diamond Selector...
11 High Accuracy Professional 2pt Jewel Stone Combo Gem Jewelry Jeweler Tester Test Selection Tool Kit... High Accuracy Professional 2pt Jewel Stone Combo Gem Jewelry Jeweler Tester Test Selection Tool...
12 High Accuracy Diamond Tester Jewelry Diamond Detector Gem Diamond Tester Pen 30X 60X Illuminated... High Accuracy Diamond Tester Jewelry Diamond Detector Gem Diamond Tester Pen 30X 60X Illuminated...
13 High Accuracy Diamond Tester Jewelry Diamond Detector Gem Diamond Tester Pen 30X 60X Illuminated... High Accuracy Diamond Tester Jewelry Diamond Detector Gem Diamond Tester Pen 30X 60X Illuminated...
14 Yhkj High Accuracy Diamond Tester+30X60X Illuminated Jewelry Eye Loupe Mini Led Foldable... Yhkj High Accuracy Diamond Tester+30X60X Illuminated Jewelry Eye Loupe Mini Led Foldable...
15 Salmue Jewerly Diamond Tester and Moissanite Tester, LED Diamond Detector Selector, Gems Stone... Salmue Jewerly Diamond Tester and Moissanite Tester, LED Diamond Detector Selector, Gems Stone...
16 HDE High Accuracy Professional Jeweler Diamond Tester For Novice and Expert,Diamond Selector II,... HDE High Accuracy Professional Jeweler Diamond Tester For Novice and Expert,Diamond Selector II,...
17 Diamond Checker Tool Electronic Kit - Gem Tester Electronic Pole Identifier Gemstone Jewelry Led Pen... Diamond Checker Tool Electronic Kit - Gem Tester Electronic Pole Identifier Gemstone Jewelry Led...
18 Diamond Tester Professional, High Accuracy Jewelry Diamond Tester Pen, Electronic Diamond Gem Tester... Diamond Tester Professional, High Accuracy Jewelry Diamond Tester Pen, Electronic Diamond Gem...
19 High Accuracy Diamond Tester+30X60X Illuminated Jewelry Eye Loupe Mini Led Foldable... High Accuracy Diamond Tester+30X60X Illuminated Jewelry Eye Loupe Mini Led Foldable...
20 Sutinna White Tester Gem Tester, Diamond Detector Diamond, Diamond Selector, Tester, for Women for... Sutinna White Tester Gem Tester, Diamond Detector Diamond, Diamond Selector, Tester, for Women...
SaleBestseller No. 1
HMKIS Diamond Tester Pen, High Accuracy Jewelry Diamond Tester+ 60X Mini LED Magnifying,...
  • [Easy to Use]: Real Diamond will Emits sounds and lights >=9.
  • [Intuitive Design]: Fake crystal, such as cubic zirconium ( CZ ), crystal, glass will be no sounds and lights <9.
  • [fast and safe ]: This diamond selector tester designed for quick, precise, and safe diamond testing. No harm to diamonds.
  • [Magnification]: 60X led Magnification with batteries ( Small microscope ). For Gems, Coins, Antiques, Stamps, Reading, Inspection etc.
  • [Note]: Please ensure that the battery temperature is higher than 10 ℃, can not test metal, save power
Bestseller No. 2
Diamond Tester Pen, High Accuracy Jewelry Diamond Tester+200g/0.01g Mini Jewelry Scale+60X Mini...
  • This gemstone testing equipment is not only a diamond tester, but also a multi gemstone tester. It can detect if a gemstone is real or fake,...
  • Simple to Use Diamond Tester Pen is simple to operate to get results, professional(s) are not required. Simply turn on our Diamond Tester Pen...
  • This pocket scale has 200 gram max weight capacity and reads weights in increments of 0.01g. High precision sensors make sure the accuracy. 6 weigh...
  • Portable Diamond Tester Pen and 60X LED Lighted Loupe each comes with its own convenient carrying cases. Both items are small and can fit into any...
  • Application Range:Industrial Purpose, Circuit Board And Printing , Industry, Medicine, Gardening, Coin, Diamond,Stamp, Jewelry, Appraisal, Education,...
Bestseller No. 3
[Upgraded] Diamond Tester Pen, High Accuracy Jewelry Diamond Teste Portable Electronic Diamond...
  • Professional Diamond Selector II will indicate genuine diamond or fake.
  • It is designed for quick, precise, and safe diamond testing.
  • Portable electronic device for distinguishing real diamonds from other simulated stones.
  • If stone is Fake crystal, a simulant such as cubic zirconium ( CZ ), will be no reaction
  • Emits audible sounds to easily differentiate the readings
Bestseller No. 4
High Accuracy Diamond Tester Professional Diamond Tester Pen Jeweler Tool for Novice and Expert -...
  • [Fast and safe ]:Professional Diamond Selector II will indicate genuine diamond or fake.It is designed for quick, precise, and safe diamond testing.
  • [Intuitive Design]:LCD display & LED indicator.Uses large / small switches for testing diamonds,Emits audible sounds to easily differentiate the...
  • [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...
  • [Package include]:Diamond tester is battery powered for convenience.Requires 1 standard 9v battery, which is included.Package include:1 x Diamond...
Bestseller No. 5
Diamond Tester Pen+60X Mini LED Magnifying,High Accuracy Jewelry Diamond Tester Tool,Environmental...
  • ✔【Intuitive Design】Hqdz Diamond Tester Pen comes with LED lights and audio indication. During a test, if the stone tested is a diamond, the LED...
  • ✔【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...
  • ✔【Fast Results】Hqdz’s Diamond Tester Pen is design to deliver fast, accurate results. You will be able to know if something is fake in a...
  • ✔【Portable】Hqdz Diamond Tester Pen and 60X LED Lighted Loupe each comes with its own convenient carrying cases. Both items are small and can fit...
  • ✔【Application Range】Industrial Purpose, Circuit Board And Printing , Industry, Medicine, Gardening, Coin, Diamond,Stamp, Jewelry, Appraisal,...
Bestseller No. 6
GER Detect Diamond Hunter Ground Penetrating Radar, Professional Metal Detector, Highly Precise...
  • HIGHLY PRECISE DEVICE: The ultimate treasure detector in regards to diamond and gemstone hunting capability! This detector is built to accurately...
  • LONG RANGE DETECTION: Experience the power of geolocation technology that functions as a deep-seeking, ground penetrating detector. The detector also...
  • NEWLY DESIGNED SYSTEM: Choose between four different search modes for small diamonds, big diamonds, wrought gemstones, and natural gemstones.
  • INDUSTRY LEADERS: Detector Power has over 10 years of experience so it’s no surprise that our products lead the industry in design and...
  • AUTHORIZATION AND GUARANTEE: When purchasing a product from us, prior bank authorization may be necessary to prevent order cancellation. Please...
SaleBestseller No. 7
Presidium Multi Tester III (PMuT III) All-In-One Instrument for Testing Diamonds, Moissanites and...
  • IMPORTANT TO NOTE: This product needs to be calibrated prior to use. If you experience issues with calibration, please reach out to the seller for...
  • EASY TO USE DESIGN: Ergonomic handheld design with a rubberized anti-slip grip for easy handling. Light and portable with a convenient carrying case.
  • THINNEST RETRACTABLE PROBE TIP: Retractable probe tip that ensures consistent pressure against the gemstone during testing for more reliable results....
  • CLEAR, CONVENIENT DISPLAY: 180-degree multi-viewing LED display for easy readability for either right or left-handed use
  • ALL-IN-ONE INSTRUMENT: The world’s first tester that tests for both colorless diamonds and moissanites in a single instrument. Powered by 3 AAA...
Bestseller No. 8
SmartPro SPGE-I Gem Eye I Gem and Diamond Tester Smart Pro
  • High efficiency
  • Industry’s 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
Bestseller No. 9
Diamond Tester, Diamond Detector, Diamond Tester Pen, Diamond Tester Professional, Diamond Detector,...
  • 【SIMPLE AND FAST TO USE】Our diamond detector can quickly test the authenticity of diamonds, jade, agate, and crystal. If it is a real diamond, the...
  • 【REASONABLE DESIGN】Our High Accuracy Professional Jeweler is the second generation and the diamond gem tester is very simple to use. You just need...
  • 【QUICK DISTINGUISH】You just need to open our diamond gem tester, put the tip of Diamond Detector perpendicular to the gemstone (90 degrees)....
  • 【SCOPE OF APPLICATION】Diamond Tester Pen High Accuracy Professional Jeweler can be used for diamond, jade, crystal, agate. diamond checker tool...
  • 【SERVICE】If you have any questions about the use, please feel free to contact us, we will reply to you within 24 hours. Package includes:1 x...
Bestseller No. 10
Best High Accuracy Diamond Tester Professional Jeweler for Novice and Expert - Diamond Selector II...
  • Professional Diamond Selector II will indicate genuine diamond or fake
  • It is designed for quick, precise, and safe diamond testing.
  • Portable electronic device for distinguishing real diamonds from other simulated stones.
  • If stone is Fake crystal, a simulant such as cubic zirconium ( CZ ), will be no reaction.
  • Emits audible sounds to easily differentiate the readings
Bestseller No. 11
High Accuracy Professional 2pt Jewel Stone Combo Gem Jewelry Jeweler Tester Test Selection Tool Kit...
  • Working time:about 2 hours of continous use
  • Probe warm up time:about 25 seconds
  • Built in metal detector
  • With "beep" sound indicator
Bestseller No. 12
High Accuracy Diamond Tester Jewelry Diamond Detector Gem Diamond Tester Pen 30X 60X Illuminated...
  • [Easy to Use,Intuitive Design]: Real Diamond will Emits sounds and lights >=9.Fake crystal, such as cubic zirconia ( CZ ), crystal, glass will be no...
  • [FOLDABLE GLASS MAGNIFIER]:Primary Lens: 30x22mm, Supplementary Lens: 60x12mm. You Can Choose Different Lens Freely. Good for Gems, Jewelry, Rocks,...
  • [Practical Jewelry loupe]:the mini LED foldable magnifying is equipped with 30X 60X lens, portable and reliable for you to see the item you want to...
  • [Multiple uses]: the gold testing kit is suitable for testing various items, such as diamonds, jades, emeralds, crystals, agates, gems and so on,...
  • [Complete tool for diamonds]: the package comes with 1 piece of Jewelry tester and 1 piece of Jewelry loupe, 2 pieces in total, which are complete and...
Bestseller No. 13
High Accuracy Diamond Tester Jewelry Diamond Detector Gem Diamond Tester Pen 30X 60X Illuminated...
  • Complete tool for diamonds: the package comes with 1 piece of Jewelry tester and 1 piece of Jewelry loupe, 2 pieces in total, which are complete and...
  • Clear screen design: these high accuracy diamond testers are designed with a clear screen, so you can get the useful data quickly; The item you are...
  • Multiple uses: the gold testing kit is suitable for testing various items, such as diamonds, jades, emeralds, crystals, agates, gems and so on, making...
  • Practical Jewelry loupe: the mini LED foldable magnifying is equipped with 30X 60X lens, portable and reliable for you to see the item you want to...
  • Size details: the jewelry diamond detector measures about 6.3 x 1.7 x 0.8 inches, mini and portable for you to hold or store, offering you a lot of...
Bestseller No. 14
Yhkj High Accuracy Diamond Tester+30X60X Illuminated Jewelry Eye Loupe Mini Led Foldable...
  • ✔【Intuitive Design】Yhkj Diamond Tester Pen comes with LED lights and audio indication. During a test, if the stone tested is a diamond, the LED...
  • ✔【Simple to Use】Yhkj Diamond Tester Pen is simple to operate to get results, professional(s) are not required. Simply turn on our Diamond Tester...
  • ✔【Fast Results】Yhkj’s Diamond Tester Pen is design to deliver fast, accurate results. You will be able to know if something is fake in a...
  • ✔【Portable】Yhkj Diamond Tester Pen and 30X60X LED Lighted Loupe each comes with its own convenient carrying cases. Both items are small and can...
  • ✔【Application Range】Industrial Purpose, Circuit Board And Printing , Industry, Medicine, Gardening, Coin, Diamond,Stamp, Jewelry, Appraisal,...
Bestseller No. 15
Salmue Jewerly Diamond Tester and Moissanite Tester, LED Diamond Detector Selector, Gems Stone...
  • High precision diamond tester: the professional diamond dial will indicate true or fake diamonds, LCD monitors and LED indicators. Compared to the...
  • Portable design: Diamond Selector II is equipped with a PU bag and a small test tray to hold loose stones. Designed for rapid, accurate and safe...
  • Small test platform: This tester is equipped with a PU housing and a small test platform for repairing loose stones. Simple calibration of precious...
  • Professional test: If the stone is a real diamond, a green indicator will be displayed. The metal alarm function emits a continuous beep when the user...
  • Versatile: The tester offers a highly compact design that is ideal for buying jewelry, buying / exchanging diamonds, selling real estate, auctions,...
SaleBestseller No. 16
HDE High Accuracy Professional Jeweler Diamond Tester For Novice and Expert,Diamond Selector II,...
  • Professional Diamond Selector II will indicate genuine diamond or fake
  • Uses large / small switches for testing diamonds
  • Emits audible sounds to easily differentiate the readings
  • Diamond tester is battery powered for convenience
  • Requires 1 standard 9v battery, which is not included
SaleBestseller No. 17
Diamond Checker Tool Electronic Kit - Gem Tester Electronic Pole Identifier Gemstone Jewelry Led Pen...
  • Size of Diamond Tester Pen: The gemstone tester pen dimensions are 6.6 Inches long, 1.6 Inches wide, and 0.8 Inches thick. The portable diamond tester...
  • Detection Way: The tester indicates genuine diamond or fake, the jewelry tester meter is designed and manufactured according to the thermal...
  • Result Indicator of Diamond Reader: With diamond gem tester you will be able to know in a few seconds whether an item is fake or not, there are the...
  • Easy to Operate Jade Jewelry Tester: Simple calibration for stones of various sizes the jewelry tester silver and diamond tester are easy to use even...
  • Wide Uses of Electronic Diamond Tester: The diamond tester professional tester is mainly used for industrial purposes, circuit boards, and printing,...
Bestseller No. 18
Diamond Tester Professional, High Accuracy Jewelry Diamond Tester Pen, Electronic Diamond Gem Tester...
  • 💎💎【Easy to use】 Place the tip of the diamond tester gently on the gemstone. If the diamond is fake, crystalline or cubic zirconia, the...
  • 💎💎【Intuitive design】 Our gemstone tester has an intuitive design, light and portable, and the jewelry diamond tester is equipped with LED...
  • 💎💎【Quick Identification】You just turn on our diamond test pen detector; place the tip of the diamond tester on the gemstone, and a single...
  • 💎💎【Accessory tools】 Magnifying glass (small microscope) equipped with 60X LED illumination. Diamond test pen can be used for gems, coins,...
  • 💎💎【Professional Service】 If you have any questions about our diamond tester pen, please contact us. We have a professional dedicated to...
Bestseller No. 19
High Accuracy Diamond Tester+30X60X Illuminated Jewelry Eye Loupe Mini Led Foldable...
  • ✔【Intuitive Design】This gemstone testing equipment is not only a diamond tester, but also a multi gemstone tester. It can detect if a gemstone...
  • ✔【Simple to Use】Mollo Diamond Tester Pen is simple to operate to get results, professional(s) are not required. Simply turn on our Diamond...
  • ✔【Portable】Mollo Diamond Tester Pen and 30X60X LED Lighted Loupe each comes with its own convenient carrying cases. Both items are small and can...
  • ✔【Application Range】Industrial Purpose, Circuit Board And Printing , Industry, Medicine, Gardening, Coin, Diamond,Stamp, Jewelry, Appraisal,...
  • ✔☛ NOTICE: * No matter what gemstone you are testing, the probe needle and the tested object must be at a 90° angle. * When testing diamond, your...
Bestseller No. 20
Sutinna White Tester Gem Tester, Diamond Detector Diamond, Diamond Selector, Tester, for Women for...
  • Diamond Selector II is equipped with a PU bag and small testing tray for holding loose stones
  • Moissanite Tester is a matching instrument with the Diamond Selector II. It is only used for the distinction of colorless Moissanite
  • Green indicator will be showed on Diamond Selector II if the stone is a real diamond. It will make continuous buzzing sound when user accidentally...
  • Lightweight and compact in size, easy and convenient to carry
  • Diamond Selector II can help you to distinguish whether your diamond is real or fake

Having trouble finding a great diamond detector?

This problem is well understood by us because we have gone through the entire diamond detector research process ourselves, which is why we have put together a comprehensive list of the best diamond detectors available in the market today.

After hours of searching and using all the models on the market, we have found the best diamond detector for 2023. See our ranking below!

How Do You Buy The Best Diamond Detector?

Do you get stressed out thinking about shopping for a great diamond detector? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching diamond detector, which is why we have assembled a comprehensive list of the greatest diamond detector available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for diamond detector that you consider buying. Your questions might include the following:

  • Is it worth buying an diamond detector?
  • What benefits are there with buying an diamond detector?
  • What factors deserve consideration when shopping for an effective diamond detector?
  • Why is it crucial to invest in any diamond detector, much less the best one?
  • Which diamond detector are good in the current market?
  • Where can you find information like this about diamond detector?

We’re convinced that you likely have far more questions than just these regarding diamond detector, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for diamond detector, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible diamond detector. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an diamond detector buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available diamond detector currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of diamond detector has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an diamond detector?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your diamond detector.
  5. Customer Ratings: Number ratings grade diamond detector objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their diamond detector.
  7. Product Quality: You don’t always get what you pay for with an diamond detector, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an diamond detector is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining diamond detector information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding diamond detector is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: Can diamonds be detected by a metal detector?

A: This leads to an important point: metal detectors will not detect non metal items such as gemstones, diamonds and pearls. What a metal detector can do is lead you to indicator minerals, which are used by prospectors. Prospectors follow the indicator trail back to gold or the volcanic pipe which may contain diamonds.

Q: Do metal detectors detect platinum?

A: While you could search for a lot of different things with your metal detector, jewelry is definitely a n exciting choice, and here’s why: Most metal detectors can detect gold, silver, platinum, and bronze. Even old jewelry can be sold as scraps for a nice profit. You could build a killer collection of unique jewelry.

Q: What is a GEM detector?

A: A GEM of a detector. The objective is to match the harsh running conditions in future experiments, such as those at CERN ‘s LHC collider , where detectors will have to cope with high data rates and will be exposed to intense bombardment by high-energy particles.

Q: What is a mine detector?

A: mine detector – detector consisting of an electromagnetic device; used to locate explosive mines. detector, sensing element, sensor – any device that receives a signal or stimulus (as heat or pressure or light or motion etc.) and responds to it in a distinctive manner.