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The 8 Best diamond testers of 2024

Are you trying to find diamond testers among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling diamond testers on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 18 hours of research and did 58 diamond testers tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best diamond testers you can buy today

No. 1
HMKIS Diamond Tester, 9V Battery, High Accuracy Jewelry Diamond Tester, Professional Diamond Selector, Thermal Conductivity Meter
  • 【Initialization】After powering on, turn the wheel to keep 4 green lights on to finish the Initialization. Otherwise you will get inaccurate results. 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.
  • 【For Diamond】For testing diamond, it will emits beeping-beeping-beeping in a low frequency, 1 time/second. Meanwhile 1-4 pieces of the RED LAMP box of the level meter light on(the bigger the size of the stone is, the more pieces of the red lamp box of the level meter light up)
  • 【For Imitation】When Testing Imitation stone,such as cubic zirconium ( CZ ), crystal, glass, there will be no sound, and the red lamp won’t light.
  • 【Metal Alert】When Testing metal, it will emits beeping-beeping-beeping in a high frequency,5times/second. The thermal conductivity of the metal is very high and can give the same indication as a diamond with most thermal probes.) This Diamond Selector II has a metal Alert Buzzer to warn you when touches metal. If you hear the Metal Alert buzzing sound,re-touch the probe tip so as to touch only the tested stone.
  • 【Other Alert】When test other items, it will also emits beeping-beeping-beeping in a high frequency,5times/second,such as your body,water,and so on.
  • 【Moissanite & Real Diamonds】:This diamond tester II can just distinguish diamond and fake diamond,but CAN NOT distinguish Moissanite & Real Diamonds
  • [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.
No. 2
High Accuracy Professional Diamond Tester Pen Jeweler Tool for Novice and Expert - Diamond Selector II 9V Battery Included(Black)
  • [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 readings.
  • [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.
  • [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.
No. 3
HMKIS Diamond Tester Pen and 9V Battery Kit,High Accuracy Jewelry Diamond Tester,Diamond Selector for Novice and Expert, Thermal Conductivity Meter (Diamond Tester)
  • 【Initialization】After powering on, turn the wheel to keep 4 green lights on to finish the Initialization. Otherwise you will get inaccurate results. 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.
  • 【For Diamond】For testing diamond, it will emits beeping-beeping-beeping in a low frequency, 1 time/second. Meanwhile 1-4 pieces of the RED LAMP box of the level meter light on(the bigger the size of the stone is, the more pieces of the red lamp box of the level meter light up)
  • 【For Imitation】When Testing Imitation stone,such as cubic zirconium ( CZ ), crystal, glass, there will be no sound, and the red lamp won’t light.
  • 【Metal Alert】When Testing metal, it will emits beeping-beeping-beeping in a high frequency,5times/second. The thermal conductivity of the metal is very high and can give the same indication as a diamond with most thermal probes.)This Diamond Selector II has a metal Alert Buzzer to warn you when touches metal. If you hear the Metal Alert buzzing sound,re-touch the probe tip so as to touch only the tested stone.
  • 【Other Alert】When test other items, it will also emits beeping-beeping-beeping in a high frequency,5times/second,such as your body,water,and so on.
  • 【Moissanite & Real Diamonds】:This diamond tester II can just distinguish diamond and fake diamond,but CAN NOT distinguish Moissanite & Real Diamonds
  • [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.
No. 4
HMJOY Diamond Tester, Hight Accuracy Jewelry Diamond Tester, Professional Diamond Selector for Novice and Expert Jewelry Diamond Tester Pen
  • [INITIALIZATION SETUP] After powering on, turn the wheel to keep 4 green lights on to finish the Initialization. Otherwise you will get inaccurate results. 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.
  • [TEST REAL DIAMOND] For testing diamond, it will emits beeping-beeping-beeping in a low frequency, 1 time/second. Meanwhile 1-4 pieces of the RED LAMP box of the level meter light on(the bigger the size of the stone is, the more pieces of the red lamp box of the level meter light up)
  • [INTUITIVE]: Fake crystal, such as cubic zirconium ( CZ ), crystal, glass will be no sounds and lights <9.
  • [FAST & SAFE]: This diamond selector tester is designed for quick, precise and safe diamond testing. No harm to diamonds
  • [Two Hands 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.
  • [WARM NOTICE 1]: The contacts need to be pressed vertically against the surface of the diamond.
  • [WARM NOTICE 2]: Please ensure that the battery temperature is higher than 10 ℃, can not test metal, save power
  • [WARM NOTICE 3]: Please refer to the Manual for help when come across problems.
  • [WARM NOTICE 4]:When Testing metal, it will emits beeping-beeping-beeping in a high frequency,5times/second. The thermal conductivity of the metal is very high and can give the same indication as a diamond with most thermal probes.)This Diamond Selector II has a metal Alert Buzzer to warn you when touches metal. If you hear the Metal Alert buzzing sound,re-touch the probe tip so as to touch only the tested stone.
  • [WARM NOTICE 5]:This diamond tester II can just distinguish diamond and fake diamond,but CAN NOT distinguish Moissanite & Real Diamonds
No. 5
High Accuracy Professional Diamond Tester Portable Gem Selector Gemstone Jeweler Tool Testing Kit Pen
  • 【Professional Product 】: Designed for quick, precise, and safe diamond testing. Portable electronic device for distinguishing real diamonds from other simulated stones. Diamond tester is equipped with convenient carrying cases.
  • 【Easy to Use】: If the diamond is fake, it will not display and make a sound. If it is a real diamond, there will be a Light up indicator. Diamond tester is very easy to use.
  • 【Fastest Effect】: Display & indicator, large / small switch for testing diamonds +/ - 8 points, metal alert ( When a user accidentally hit the metal rather than stone will sound ).
  • 【Smooth & Tangled-Free】: 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, including: diamond, sapphire, ruby, crystal, agate, jadeite, and other precious stone of various sizes.
  • 【Instrument Configuration】: This diamond tester pen comes with a leather bag and small testing tray for holding loose stones.
No. 6
Diamond Tester Pen,High Accuracy Jewelry Diamond Tester+40X Full Metal Jewelers Eye Loupe,LED/UV Illuminated Pocket Folding Magnifying Glass,Professional Diamond Selector for Novice and Expert
7 Consomer Reviews
Diamond Tester Pen,High Accuracy Jewelry Diamond Tester+40X Full Metal Jewelers Eye Loupe,LED/UV Illuminated Pocket Folding Magnifying Glass,Professional Diamond Selector for Novice and Expert
  • ✿[Easy to Use&Intuitive Design]: Real Diamond will Emits sounds and lights >=9.Fake crystal, such as cubic zirconium ( CZ ), crystal, glass will be no sounds and lights <9.
  • ✿[High Accuracy Diamond Tester]: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, including: diamond, sapphire, ruby, crystal, agate, jadeite, and other precious stone of various sizes.
  • ✿[Bright LED&Pocket size]:This 40X magnifying glass Illuminated Jeweler Loupe is built from durable metal with an optical glass that is 25 mm in length and has a dual bright LED light.Pocket size:it is very convenient to carry and you can use it anywhere. It requires 3 LR1130 batteries (Batteries are Included).
  • ✿[40X HAND LENS&Bright LED]: With this dual LED light source, you can clearly see objects in the dark or in low light. The magnifying glass provides a detector for detecting counterfeit banknotes, which is used for banknotes, passports, credit cards and traveler's checks, etc.
  • ✿[Professional Service]:Popular among professionals, hobbyists, coin enthusiasts, and business owners alike. Excellent tools. Excellent Value. Great gift idea.Note: Please ensure that the battery temperature is higher than 10 ℃, can not test metal, save power.
No. 7
Diamond Tester Pen, High Accuracy Jewelry Diamond Tester+Expert Jade Appraisal Flashlight+30X 60X 90X Illuminated Jewelers Magnifier,Professional Diamond Selector for Novice and Expert
  • 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.This diamond selector tester designed for quick, precise, and safe diamond testing. No harm to diamonds.
  • Expert Jade Appraisal Flashlight:Flashlight uses premium LED light beads, high power and long service life. Suitable for business, academic research, antiques, appraising currency, jade testing, etc.
  • Expert Jade Appraisal Flashlight:Fine workmanship and beautiful appearance, ensure its popularity and utility.Made of premium material, durable and practical in use.See the texture is clear, suitable to see without leather or carved jade.LED wick with high penetration and light concentration.
  • 30X 60X 90X Jewelry Magnifier: With a built-in LED light and UV black light lens, the folding diamond magnifying glass comes with 3 different magnification lenses, 30 x 25 mm, 60 x 12 mm and 90 x 8 mm. LED lights to provide good illumination for clarity. There's a UV light to detect fluorescent minerals and markings
  • Package contents: 1 x diamond tester, 1 x Expert Jade Appraisal Flashlight, 1x 30X 60X 90X Illuminated Jewelers Magnifier, If you have any questions about the use, please feel free to contact us, we will reply to you within 24 hours.
No. 8
Diamond Tester Pen, High Accuracy Jewelry Diamond Tester+200g/0.01g Mini Jewelry Scale+60X Mini LED Magnifying, Professional Diamond Selector for Novice and Expert, Thermal Conductivity Meter
  • 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, including: diamond, sapphire, ruby, crystal, agate, jadeite, and other precious stone of various sizes.
  • 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 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. reads weights of adiamond use 200g/0.01g Mini Jewelry Scale, To determine the clarity of a diamond use 60X LED lighted Loupe, magnifying glasses.
  • 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 modes available - g/ oz/ gn/ ct/ dwt/ ozt.Tare & Auto-off: You can use the tare function to zero the weight of container within 200g. Energy saving by 3 minutes auto-off function.
  • 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 purse or backpack. Diamond Tester Pen and 60X LED Lighted Loupe combo and 200g/0.01g Mini Jewelry Scal is a must have tool kit when you are going to a garage sale, flea market, swap meet, etc. Alternatively, its also a great tool to have when testing your own jewelry.
  • Application Range:Industrial Purpose, Circuit Board And Printing , Industry, Medicine, Gardening, Coin, Diamond,Stamp, Jewelry, Appraisal, Education, Geography, Home And Office.fast and safe This diamond selector tester designed for quick, precise, and safe diamond testing. No harm to diamonds. If you have any questions about use, please contact us. We will explain in detail. Professional equipment, the use method needs to learn slowly.
No. 9
Purity Testing Kit for Diamonds Gemstones Moissanites Gold Silver and Platinum Jewelry Electronic Digital Diamond Tester Machine JSP GTE
  • ALL-IN-ONE GOLD, SILVER, PLATINUM, & DIAMOND JEWELRY TESTING & APPRAISAL KIT
  • FUN, FAST, AND ACCURATE! DETERMINES THE KARAT OF GOLD, SILVER, AND PLATINUM JEWELRY IN SECONDS!
  • AUTHENTIC GTE 3''x6'' JEWELRY TOUCHSTONE FOR SAFE TESTING THAT WON'T DAMAGE YOUR JEWELRY
  • JEWELRY TEST KIT-DIAMOND TESTER-TRIPLET MAGNIFIER
  • A MUST-HAVE FOR ANYONE WHO WANTS TO INVEST IN GOLD, SILVER, PLATINUM, OR DIAMONDS!
  • BONUS* GTE ACID NEUTRALIZER QUICKLY CLEANS STONE
No. 10
Diamond Tester, Diamond Detector, Diamond Tester Pen, Diamond Tester Professional, gem Tester, Diamond Tester Pen High Accuracy Professional Jeweler(Black Diamond Testers)
  • 【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 indicator light will be greater than or equal to 9 and accompanied by a sound.
  • 【REASONABLE DESIGN】Our High Accuracy Professional Jeweler is the second generation and the diamond gem tester is very simple to use. You just need to install the battery and turn the switch before use.(without battery)
  • 【QUICK DISTINGUISH】You just need to open our diamond gem tester, put the tip of Diamond Detector perpendicular to the gemstone (90 degrees). You'll be able to quickly get results in seconds, knowing if the item is real or fake.
  • 【SCOPE OF APPLICATION】Diamond Tester Pen High Accuracy Professional Jeweler can be used for diamond, jade, crystal, agate. diamond checker tool can easily and quickly test the authenticity of the tested items.
  • 【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 Diamond Tester, 1 x User Manual, 1x Test Platform. This product not included 9V battery
SaleNo. 11
Dupeakya Professional Diamond Tester, Gem Tester Pen Portable Electronic Diamond Tester Tool for Jewelry Jade Ruby Stone
  • This is a portable electronic device for distinguishing real diamonds from other simulated stones. It is designed for quick, precise, and safe diamond tests.
  • An excellent tool kit for the diamond tester, suitable for handling any exposed or inlaid diamonds and gems, as well as other jewelry and precious metal items.
  • The diamond detector with voice instructions and audible sounds are emitted when the lights are on so that you can easily distinguish between masonry and stone.
  • The small portable electronic devices can be put in any wallet or backpack, and the operation is simple. As long as the tip is perpendicular to the test masonry and the switch is pressed, the result can be obtained.
  • Package contents: 1 x diamond tester, 1 x leather case, 1 x test platform, 1 x user manual. This product uses a dc9v battery (not including battery).
No. 12
KIMTUR Diamond Tester Pen, High Accuracy Jewelry Diamond Tester, Professional Diamond Selector for Novice and Expert,Portable High Accuracy Probe Indicator Diamond Selector
  • Professional Diamond Selector:will show real diamonds or fakes,Use the big/small switch to test diamonds,Makes an audible sound to easily distinguish readings.
  • Green indicator will be showed if the stone is a real diamond. It will make continuous buzzing sound when user accidentally touches metal rather than stone.
  • Fast and Safe: This diamond selector tester is designed for fast, precise and safe diamond testing. Harmless to diamonds.
  • Support battery: support mercury-free alkaline environment-friendly high-performance battery,DC 9V battery x 1 (Not Included)
  • Service: If you have any questions about the use, please contact us. We will explain the details. Professional equipment, the use method needs to be learned slowly.
No. 13
Diamond Tester Combo Diamond Detector Moissanite Tester Audible&Visual Alarm Diamond Checker Tool Professional Diamond Moissanite Tester Pen for Diamond and Moissanite
35 Consomer Reviews
Diamond Tester Combo Diamond Detector Moissanite Tester Audible&Visual Alarm Diamond Checker Tool Professional Diamond Moissanite Tester Pen for Diamond and Moissanite
  • ✅【High Accuracy】 The Diamond&Moissanite Tester is designed to help you quickly determine diamond and moissanite from other fake stones
  • ✅【User-Friendly】: Diamond Detector is easy to operate, hold the meter in 90 Degree position to insert to the surface of diamond, then Green light(diamond) or Blue light(moissanite) will appear on the indicator
  • ✅【High-precision chip】Diamond Tester is able to detect metal, the inditor will appear orange signal if touch metal material. If without this function, other testers selling on amazon can indicate a real diamond when you unknowingly touch the setting even if the diamond is fake.
  • ✅【User-Friendly】Diamond Tester is designed with rubber paint finish, this device provides safe, non-slip comfort and control. It is also equipped with a fine elastic tipped probe for testing and identifying stones with small sizes.
  • ✅【Portable Desgin】It's compact-sized design, it's easy to bring when you need it, where you need it. It also allows continuous use of up to 2 hours and quick probe warm up time of 25 seconds.
SaleNo. 14
GemOro Pro-D 3 Diamond Tester | Test Diamond and White Sapphire Gemstone | Precision Tool with Expert Professional Reading & Accuracy
  • STONE IDENTIFICATION: This new enhanced testing technology is a breakthrough in the identification, detection, and separation of diamonds from other materials such as CZ, moissanite, and white sapphire. This technology has the capability to identify stones with low conductivity, allowing accurate detection and separation of diamonds from other materials. It evaluates stones using cutting-edge scanning techniques and advanced software analysis, ensuring a highly accurate test result.
  • LED STONE ILLUMINATION & DETECTION: This is a high-performance diamond tester with LED stone illumination and UV fluorescence detection. It uses a unique retractable probe tip that is designed for enhanced durability. The LED stone illumination will help you see the subtle nuances of the diamond, such as clarity, while the UV fluorescence detection allows you to detect any potential diamond treatments. This is the perfect tool for diamond grading, authentication, and identification.
  • POWERED BY MICRO USB: This versatile device comes with multiple power sources. It can be powered by either your MICRO USB cable, rechargeable NiMH batteries, or AAA Alkaline batteries with a battery-saving auto-off function. It includes NiMH rechargeable batteries, an AC adapter/charger, a loose stone holder, and a compact rubberized portable storage case. You get to choose the power source that works best for you, and the device will be ready when you need it!
  • WARRANTY: This diamond tester is the perfect choice for those looking for precise results and a reliable warranty. It comes with 2-year limited replacement warranty on probe tip - Lifetime warranty on the electronics.
  • THE SPARKLE EXPERTS: Make your jewelry sparkle like new! GEMORO is the leader in jewelry cleaning appliances, highly effective jewelry cleaning solutions, tools, and equipment. We offer a variety of products to clean your jewelry, from steamers and ultrasonics to on-the-go cleaners and manufacturers of the jewelry industry’s innovative, quality-made, and feature-rich testing equipment and tools. We have all your jewelry needs covered. Fall in love with your jewelry every day!
No. 15
High Accuracy Diamond Tester Pen,Professional Jewelry Diamond Tester,Diamond Selector for Novice and Expert, Thermal Conductivity Meter-9V Battery Included(Diamond Tester)
  • ♦【Intuitive Design】Our diamond tester features an LCD display and LED indicator make it easy to read your precise testing results.
  • ♦【Effortless Testing】 No need for a professional - the Hqdz-td Diamond Tester Pen is easy to operate. Just turn it on, lightly press the tip to the gemstone, and wait for the beep to know if it's real or fake.
  • ♦【If it's Real Diamond】The professional Diamond Tester will lighted up over 9 and emits audible sounds. No reaction means the stone is a fake crystal or simulant like cubic zirconium (CZ).
  • ♦【Quick and Safe】 Designed for quick, precise, and safe diamond testing, this diamond selector tester ensures that there is no harm to diamonds during the testing process. providing accurate results every time.
  • ♦【Convenient Package】 The Diamond Tester is battery-powered by a standard 9v battery (included), and the package comes with a leather pouch case, testing platform, user manual and accurate diamond tester pen.
No. 16
Diamond Tester with Ultraviolet (UV) Light - Professional Diamond Selector for Retail Jewelers, Pawn Brokers, and Chain Stores
  • Diamond Testing Accuracy: Distinguishes genuine diamonds from fake crystals and simulants with high accuracy.
  • UV Light: Equipped with ultraviolet light to test the fluorescent reaction of stones, providing additional authenticity verification.
  • Convenient Operation: Operate with a 9V battery (not included) or connect to an A/C adaptor (not included) for long-time indoor use.
  • User-Friendly Design: Multi-level volume calibration for precise testing and compatibility with different sizes of stones.
  • Complete Set: Includes a vinyl leather pouch case, heavy-duty testing p, and English instruction manual for a complete testing experience.
SaleNo. 17
Diamond Tester Pen, ZAKVOP High Accuracy Jewelry Diamond Tester Tool, Upgraded Professional Diamond Selector for Novice and Expert, Portable Electronic Diamond Detector, Thermal Conductivity Meter
87 Consomer Reviews
Diamond Tester Pen, ZAKVOP High Accuracy Jewelry Diamond Tester Tool, Upgraded Professional Diamond Selector for Novice and Expert, Portable Electronic Diamond Detector, Thermal Conductivity Meter
  • 💎【Fast Results】: Diamond Selector II, Newest Diamond Tester Pen, high accuracy indicate genuine diamond or fake. This diamond selector tester designed for quick, precise, and safe diamond testing. No harm to diamonds.
  • 💎【Simple Use】: The diamond tester pen is simple to operate to get results. Just adjust to the appropriate gear, put the tip of the diamond tester on the diamond and press it gently. When testing, the probe needle and the tested object must be at a 90° angle.
  • 💎【Intuitive Design】: Professional Diamond Selector II will indicate genuine diamond or fake. The real diamond will make sound and LED light > = 9. Fake crystal, such as cubic zirconium ( CZ ), crystal, glass will be no sounds and LED lights <9.
  • 💎【Jeweler Diamond Tester】: This diamond tester can not only detect the authenticity of diamonds, but also detect the authenticity of jewelry. It can detect gemstones including: sapphire, ruby, crystal, agate, jadeite and other gemstones of various sizes.
  • 💎【Warm Reminder】: When testing diamond, your right index finger must keep touching the metal panel on the back of the tester, while you do not touch the panel if you test other gemstones. Do Not test any metal. Do Not wear glove.
No. 18
Best Sellers Diamond Tester Pen,High Accuracy Jewelry Diamond Tester Tool for Novice and Expert, Thermal Conductivity Meter(Diamond Tester)
  • ☢[Easy to Use]: Real Diamond will Emits sounds and lights >=9.It is designed for quick, precise, and safe diamond testing.Emits audible sounds to easily differentiate the readings.
  • ☢[Intuitive Design]: Fake crystal, such as cubic zirconium ( CZ ), crystal, glass will be no sounds and lights <9.Professional Diamond Selector II will indicate genuine diamond or fake,LCD display & LED indicator
  • ☢[Supporting battery]: Supporting alkaline mercury-free environmentally friendly high-performance battery.
  • ☢[Portable]: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.
  • ☢[Service]: If you have any questions about use, please contact us. We will explain in detail. Professional equipment, the use method needs to learn slowly.
SaleNo. 19
Presidium Multi Tester III (PMuT III) All-in-One Instrument for Testing Diamonds, Moissanites and Diamond Simulants
  • 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 assistance prior to returning the item.
  • 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. With the industry’s thinnest probe tip size of 0.6mm, the PMuT III tests colorless diamonds as small as 0.02ct.
  • 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 batteries.
No. 20
qiguch66 Diamond Tester Pen Portable High Accuracy Probe 3-color Indicator Diamond Selector for Jewelry - A
  • This diamond tester uses probe heating chip to detect the authenticity of diamonds, which has high accuracy and quick response speed.
  • You can easily differentiate the results by the 3-color indicator, and this diamond tester is lightweight and compact in size, which is portable and easy to operate.
  • Made of high-quality ABS and metal, this diamond tester is durable.
  • It is 16.1cm long, 4.03cm wide and 2.23cm high.
  • It is used to identify the authenticity of diamonds and the hardness of some gems.

How to choose a good diamond testers

Does the idea of finding a fantastic diamond testers make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in diamond testers. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top diamond testers products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top diamond testers on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top diamond testers brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top diamond testers based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the diamond testers were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good diamond testers, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your diamond testers.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting diamond testers for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our diamond testers. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what diamond testers should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on diamond testers.