Best Gemstone Tester in 2022 [*Detailed Reviews*]

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Looking for the best gemstone tester available? We’ve got you covered. Check out the ratings of absolute bestsellers below and make a final decision.

2191 Reviews Scanned

Bestseller No. 1
Presidium Instruments Gem Tester II (PGT II) with Assisted Thermal Calibration (ATC) for Identifying Diamonds/Moissanites and Common Colored Gemstones
  • 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 industry’s 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
Bestseller No. 2
HMKIS Diamond Tester Pen, High Accuracy Jewelry Diamond Tester+ 60X Mini LED Magnifying, Professional Diamond Selector for Novice and Expert, Thermal Conductivity Meter
  • [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 
  • [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.
  • [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.
Bestseller No. 3
Presidium Instruments Gem Tester II (PGT II) Now with Assisted Thermal Calibration (ATC) for Identifying Diamonds/Moissanites and Common Colored Gemstones
  • NOTE: The calibration may be affected during shipping. If you have issues, reach out to the seller.
  • INDUSTRIES MOST TRUSTED gemstone tester redesigned to be more compact, sturdy and portable.
  • THINNEST RETRACTABLE PROBE TIP: PGT II features the industry’s 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.
SaleBestseller No. 4
Dupeakya Professional Diamond Selector II, 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 test.
  • 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.
  • With voice instructions, audible sounds are emitted when the lights are on, so that you can easily distinguish between masonry and stone.
  • 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 dc9v battery (not including battery).
Bestseller No. 5
Presidium Instruments Gem Indicator (PGI) Handheld Tester for Identifying Diamonds and Common Colored Gemstones
  • MUST READ INSTRUCTIONS BEFORE USING | Presidium is available for any troubleshooting assistance
  • THINNEST RETRACTABLE PROBE TIP | Retractable thermoelectric probe tip that ensures constant pressure between probe and gemstone, for enhanced accuracy.
  • VERSATILE AND RELIABLE | Color input function to further separate gemstones for more precise results.
  • EASY TO READ | Results are on a clear digital LED screen; Tests an extended range of 31 different gemstones.
  • ERGONOMIC | Sleek chrome-brushed ergonomic grip; USB port for alternative power and handheld for convenience.
Bestseller No. 6
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. 7
(Newest) Diamond Tester Pen, High Accuracy Jewelry Diamond Teste Portable Electronic Diamond Tester Tool for Jewelry Jade Ruby Stone(with Battery)
  • 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. 8
Presidium Instruments Gem Indicator (PGI) Handheld Tester for Identifying Diamonds and Common Colored Gemstones
  • INDUSTRIES MOST TRUSTED | The only handheld tester specifically for colored gemstones; Quick results in less than 6 seconds.
  • THINNEST RETRACTABLE PROBE TIP | Retractable thermoelectric probe tip that ensures constant pressure between probe and gemstone, for enhanced accuracy.
  • VERSATILE AND RELIABLE | Color input function to further separate gemstones for more precise results.
  • EASY TO READ | Results are on a clear digital LED screen; Tests an extended range of 31 different gemstones.
  • ERGONOMIC | Sleek chrome-brushed ergonomic grip; USB port for alternative power and handheld for convenience.
Bestseller No. 9
[Upgraded] High Accuracy Diamond Tester Professional Jeweler for Novice and Expert - Diamond Selector II 9V Battery Included(Black Diamond Testers)
  • [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.
Bestseller No. 10
Alesuc Diamond Tester II V2 Selector Gemstone Jewelry Gems Tool with Case for Testing Novice and Zircon or Glass Diamond Selector II
  • Alesuc Diamond Tester is designed for quick, precise, and safe diamond testing; with LCD display & LED indicator
  • 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
  • If stone is Fake crystal, a simulant such as cubic zirconium ( CZ ), will be no reaction
  • Diamand tester is powered by DC 9V battery x 1 (Not Included)
  • Package Included: 1 * Diamond Tester(no battery included)

Choosing the Best Gemstone Tester: Tips Buying Guide

Laying your hands on the best gemstone tester comes with ebbs and flows. It’s natural, for finding a quality gemstone tester (just like any other product) suggests browsing through tons of item specifications, customer reviews, price variations, warranty details, and gemstone tester ratings.

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If you’re still on the fence about what gemstone tester to buy, this gemstone tester buying guide might be right up your street. Here, we let you in on how we compile our best-rated gemstone tester roundups and reveal the criteria we take into account.

Now, when shopping for the top gemstone tester, some of the following questions probably linger through your mind:

  • How much money am I ready to spend on it?
  • What should I look for in a gemstone tester to stick with the best one?
  • Who makes the best gemstone tester?
  • What are the pros and cons of the specific product that has caught my eye?
  • What are the warranty details?
  • Do I trust this particular manufacturer/seller?

No doubt, your questions about the product you’re interested in don’t end there. And that’s nothing but good. If you have extra time for researching under your own steam, then make the most of it.

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If you don’t, then you can always trust our reviews. Read on for more info on how to succeed in investigating the product you like, without any extra assistance.

Read Gemstone Tester Reviews Conduct Your Own Analysis

If you’re a responsible buyer and you don’t like wasting your money on worthless stuff, you tend to invest your time and effort in conducting your own research on the product you’re interested in prior to making a purchase.

You research customer testimonials, Google product information, evaluate the benefits and drawbacks of the item(s) you fancy, while taking their more affordable alternatives into consideration.

When learning as much as you can about the product you want to buy, you will want to focus on the most reliable sources of information. Here are a few tips on getting the most trusted details about the item(s) you’re currently shopping for:

  • read a lot of reviews;
  • compare gemstone tester reviews;
  • analyze those reviews and bear in mind that some of them might not be as independent (read as trustworthy) as they sound;
  • watch video reviews featuring the product you’re focused on purchasing, see it in action, do your best to make your
  • own conclusions whenever possible.

How We Rate Each Gemstone Tester

Now, if you have no time (or lack in-depth expert knowledge) for researching all the technical details and customer rating info about the item(s) you’re looking to buy, feel free to turn to our assistance. We analyze each product based on multiple expert criteria prior to sharing our experience-backed opinion on it.

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So, when preparing our reviews, we focus on the following major factors:

  • gemstone tester brand’s reliability and reputation;
  • the features and specs of a product;
  • overall product quality and durability;
  • the product’s benefits and drawbacks;
  • other customer reviews and ratings;
  • video reviews and maintenance specifics.

You can always trust our product reviews, as we only publish them after profound and extensive testing sessions. We aim to be as objective as possible, for we appreciate our reputation and want to be the best in our field, helping our readers make the right choice.

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When it comes to testing and reviewing a variety of products, our algorithms are analyzing thousands of customer reviews each second to find real bestsellers and the highest quality products.

We update our reviews on a regular basis, for we want you to get the most comprehensive and current details out there.

All in all, how we test each gemstone tester and work up our gemstone tester comparison analyses is always about honesty, integrity, independence, and maximum objectivity.

If you have any comments, questions, or suggestions regarding our reviews, you’re welcome to contact us with them ASAP. We value your feedback greatly.

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