Jewelry Making Tools & Accessories Product Guides

40 Best diamond tester in 2023: According to Experts.

Written by Jeff Lampkin

You could get any random diamond tester, but if you’re looking for expert advice on choosing the best one for your needs then you’ve arrived at the right place.

It doesn’t matter what your diamond tester needs are or what your budget is, because I’ve done an in-depth analysis to include the best-rated options suitable for diversified usage needs and different budget ranges.

To make this list, I’ve spent 21 hours researching diamond tester from the best brands such as: Presidium, SmartPro, Presidium.

Note: Make sure that option you’re choosing has all the features you need. Afterall, is there any point in purchasing something that’s not usable?

40 Best diamond tester in 2023: After 21 Hours of Research

To make this list an unbiased resource for choosing the best diamond tester, I contacted 21 experts and discussed various aspects to consider. After a huge discussion, I went across customer reviews, researched the reputed brands, and a lot of other things. Because my aim is to recommend products that are highly value for your money.

1. HMKIS Diamond Tester Pen, High Accuracy Jewelry Diamond Tester+ 60X Mini LED Magnifying, Professional Diamond Selector for Novice and Expert, Thermal Conductivity Meter -Arts, Crafts & Sewing

By HMKIS

  • [fast and safe ]: This diamond selector tester designed for quick, precise, and safe diamond testing
  • [Easy to Use]: Real Diamond will Emits sounds and lights >=9.
  • 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
  • Professional equipment, the use method needs to learn slowly.
  • [Intuitive Design]: Fake crystal, such as cubic zirconium ( CZ ), crystal, glass will be no sounds and lights <9.
  • We will explain in detail

2. [Upgraded] High Accuracy Diamond Tester Professional Jeweler for Novice and Expert – Diamond Selector II 9V Battery Included(Black Diamond Testers) -Arts, Crafts & Sewing

By Hqdz

  • [Simple to Use]:Hqdz Diamond Tester Pen is simple to operate to get results, professional(s) are not required
  • [Intuitive Design]:LCD display & LED indicator.Uses large / small switches for testing diamonds,Emits audible sounds to easily differentiate the readings.
  • 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.
  • [Fast and safe ]:Professional Diamond Selector II will indicate genuine diamond or fake.It is designed for quick, precise, and safe diamond testing.
  • [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.

3. Gemoro Testerossa Diamond, Moissanite & White Sapphire Tester -Diamond Testers

By Gemoro

  • New Enhanced Moissanite Testing Technology for low conductivity stone identification
  • Unprecedented 10-YEAR PROBE TIP WARRANTY; Lifetime Limited Replacement Warranty on the tester
  • Identifies, detects and separates diamond from CZ, moissanite and white sapphire with New Enhanced M
  • LED stone illumination and UV fluorescence detection,Retractable probe tip with enhanced durability
  • Powered by MICRO USB or with its included rechargeable NiMH batteries, or your AAA Akaline Batteries

4. StillCool Diamond Tester II V2 Selector Gemstone Jewelry Gems Tool with Case (Black Diamond Testers) -Arts, Crafts & Sewing

By StillCool

  • 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.
  • LCD display & LED indicator.
  • Powered by DC 9V battery x 1 (Not Included)
  • It is designed for quick, precise, and safe diamond testing.

5. Presidium Multi Tester III (PMuT III) All-In-One Instrument for Testing Diamonds, Moissanites and Diamond Simulants -Diamond Testers

By Presidium

  • ALL-IN-ONE INSTRUMENT: The world’s first tester that tests for both colorless diamonds and moissanites in a single instrument.
  • THINNEST RETRACTABLE PROBE TIP: Retractable probe tip that ensures consistent pressure against the gemstone during testing for more reliable results
  • IMPORTANT TO NOTE: This product needs to be calibrated prior to use
  • With the industry’s thinnest probe tip size of 0.6mm, the PMuT III tests colorless diamonds as small as 0.02ct.
  • EASY TO USE DESIGN: Ergonomic handheld design with a rubberized anti-slip grip for easy handling
  • CLEAR, CONVENIENT DISPLAY: 180-degree multi-viewing LED display for easy readability for either right or left-handed use
  • If you experience issues with calibration, please reach out to the seller for assistance prior to returning the item.
  • Light and portable with a convenient carrying case.

6. Presidium Instruments Gem Tester II (PGT II) with Assisted Thermal Calibration (ATC) for Identifying Diamonds/Moissanites and Common Colored Gemstones -Diamond Testers

By Presidium

  • SIMPLE & EASY TO USE | Clear and easy-to-read analog dial; Can differentiate 16 types of gemstones
  • THINNEST RETRACTABLE PROBE TIP I PGT II features the industry’s thinnest retractable probe tip
  • 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
  • Identifies diamonds/moissanites
  • VERSATILE AND RELIABLE | Consistent and reliable results every time

7. GemOro Testerossa Talking Diamond, Moissanite & White Sapphire Tester, Silver -Arts, Crafts & Sewing

By Gemoro

  • Item Package Weight: 2.0 lb
  • Country Of Origin: China
  • Model Number: 0770
  • Item Package Dimension: 25.0″ L x 14.0″ W x 17.0″ H

8. GemOro Ultratester 3+ Diamond, Moissanite & White Sapphire Tester, Black -Arts, Crafts & Sewing

By Gemoro

  • Recommended by Charles & colvard
  • Tests for diamonds, moissanite, and white sapphire
  • Detects the widest range of moissanite, including forever one moissanite

9. Presidium Instruments Gem Tester II (PGT II) Now with Assisted Thermal Calibration (ATC) for Identifying Diamonds/Moissanites and Common Colored Gemstones -Diamond Testers

By PRESIDIUM

  • SIMPLE & EASY TO USE: Clear and easy-to-read analog dial; Can differentiate 16 types of gemstones.
  • INDUSTRIES MOST TRUSTED gemstone tester redesigned to be more compact, sturdy and portable.
  • If you have issues, reach out to the seller.
  • NOTE: The calibration may be affected during shipping
  • THINNEST RETRACTABLE PROBE TIP: PGT II features the industry’s thinnest retractable probe tip.
  • Identifies diamonds/moissanites.
  • VERSATILE AND RELIABLE: Consistent and reliable results every time

10. SmartPro Screen I Diamond Tester CVD HTHP Type lla Lab Created -Jewelry

By SmartPro

  • Smart touch test switch on the top front of the unit; Result indicating by Bright LED Lights with sound
  • Auto testing function, New technology LED light source with hight efficiency and mercury-free
  • No warmup time before testing; Ready LED indicator; Super battery life saver
  • Power: USB Port, Power Adapter, or 4AAA Batteries (Alkaline recommended)
  • Test from 0.01 ct up to 12 ct; Tests Earth-Mined Diamonds (D-J) and Lab Created CVD/HPHT Type IIa colorless

11. High Accuracy Diamond Tester Jewelry Diamond Detector Gem Diamond Tester Pen 30X 60X Illuminated Jewelry Eye Loupe Mini Led Foldable Magnifying Jewelry Distinguish Tool (Black Tester, Black Loupe) -Arts, Crafts & Sewing

By Weewooday

  • 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 practical for you to test or observe diamonds, bringing you a good using experience
  • Multiple uses: the gold testing kit is suitable for testing various items, such as diamonds, jades, emeralds, crystals, agates, gems and so on, making it possible for you to distinguish and observe them clearly and easily
  • 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 know, no worry about missing the details of gems; And you can also share them with your family members or good friends to enjoy much fun
  • 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 testing will be a true diamond when the data is above 9, and a true emerald crystal agate when the data is 7, saving your time to recognize
  • 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 convenience; The Jewelry loupe is about 2.0 x 1.2 x 1.1 inches, so you can hold them to see diamonds easily, without too much burden when in use

12. Rs Mizar Diamondnite Dual Diamond Tester | DIA-650.00 -Jewelry

By EURO TOOL

  • Ideal for testing non-diamond, synthetic Moissanite or genuine diamonds
  • Runs off a 9 volt battery
  • 3 minute shut-off alert to save battery
  • Warms-up in 8 seconds
  • 2 year warranty

13. TANJIN Jewelry Diamond Tester with Case Portable Gemstone Selector II High Accuracy Gem Testing Equipment -Arts, Crafts & Sewing

By TANJIN

  • 3.It can be suitable for jewelry,gemstone,document,and currency authentication.
  • 2.The red light will be showed and the audio indicator will ring if the stone is real diamond.
  • 1.Package included:1 x Portable Diamond Tester,1 x Carrying Case,1 x Testing Platform
  • 5.The jewelry diamond tester selector is powered by DC 9V battery but the battery is not included.
  • 4.Use switches for testing diamonds,Emits audible sounds to easily differentiate the readings

14. DANOPLUS Professional Diamond Moissanite Tester, High Accuracy Jewelry Test Tool Kit Combo, 2pt Gemstone Factory Calibrated Identifier Device -Arts, Crafts & Sewing

By DANOPLUS

  • WITH BUILT- IN METAL DETECTOR: Metal detector signals if the metal setting is touched instead of the stone
  • ACCURATE & RELIABLE: This device is designed to help you quickly determine diamond and moissanite from other fake stones
  • SIMPLE TO USE: Easy to operate without the need to make any necessary adjustments in the LED bar graph via volume control to match stones of different sizes, like those used in other diamond testers.
  • It can distinguish gemstones as small as 2 pt.
  • It also allows continuous use of up to 2 hours and quick probe warm up time of 25 seconds.
  • It is also equipped with a fine elastic tipped probe for testing and identifying stones with small sizes.
  • NON-SLIP DESIGN: Designed with rubber paint finish, this device provides safe, non-slip comfort and control
  • PORTABLE & DEPENDABLE: With its compact-sized design, it’s easy to bring when you need it, where you need it
  • Without this feature, other testers can indicate a real diamond when you unknowingly touch the setting even if the diamond is fake.

15. Presidium Adamas Diamond and Moissanite Tester Authenticating Diamonds -Arts, Crafts & Sewing

By Presidium

  • SLEEK ERGONOMIC STYLING: Sleek light and portable design with chrome-brushed tip and ergonomic grip provides an easy and comfortable hand hold
  • DYNAMIC MICRO LED DISPLAY: Bright LED display provides clear and precise results
  • EASY-TO-USE INTERCHANGEABLE PROBE: Retractable thermoelectric probe tip that ensures constant pressure between probe and gemstone, for enhanced accuracy
  • BUILT-IN MEMORY: Memory chip conveniently stores up to 500 previous test records.
  • Automatic power off after 2 minutes of inactivity.
  • INDUSTRY’S THINNEST TIP: Detects colorless diamonds, moissanites, simulants instantly with metal alert
  • Accurate testing on colorless diamonds as small as 0.02 carats and diamond melees as small as 0.01 carats with micro probe purchased separately
  • Damaged probes are easily replaced without downtime.
  • Power with 3 x AAA batteries or included USB cable and adapter

16. Presidium SDS Synthetic Diamond Screener -Jewelry

By Presidium

  • 2 color coded (blue/red) indicator light bars to give a low or high reading of UV light absorption with blue light indicating Natural Diamond and red light indicating Type IIa Diamond
  • Advanced technology that measures a diamond’s UV light transmittance ability
  • Blue light to illuminate the testing pad
  • Instantaneous clear results within 2 seconds

17. High Accuracy Professional 2pt Jewel Stone Combo Gem Jewelry Jeweler Tester Test Selection Tool Kit selector Meter Device for Diamond Moissanite Metal Gemstone Novice and Expert -Diamond Testers

By TEKCOPLUS

  • Working time:about 2 hours of continous use
  • With “beep” sound indicator
  • Built in metal detector
  • Probe warm up time:about 25 seconds

18. Professional Diamond Selector II, and 60X Clip-On Microscope Magnifier Professional Jeweler Gem Tester Pen Portable Electronic Diamond Tester Tool for Jewelry Jade Ruby Stone 9V Battery Included -Arts, Crafts & Sewing

By UVER

  • 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
  • Package contents: 1 x diamond tester, 1x 60X Clip-On Microscope Magnifier,1 x leather case, 1 x test platform, 1 x user manual
  • This product uses dc9v battery ( including battery).
  • As long as the tip is perpendicular to the test masonry and the switch is pressed, the result can be obtained.
  • It is designed for quick, precise, and safe diamond test.
  • This is a portable electronic device for distinguishing real diamonds from other simulated stones

19. 2023[Upgraded]Best Sellers High Accuracy Professional Jeweler Diamond Tester II V2 for Novice and Expert -Diamond Selector II (Diamond Tester) -Arts, Crafts & Sewing

By UVER

  • 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,,,
  • Diamand tester is battery powered for convenience Package Contents: 1 x Diamond Tester | .
  • Uses large / small switches for testing diamonds,Emits audible sounds to easily differentiate the readings
  • Professional Diamond Selector II will indicate genuine diamond or fake,It is designed for quick, precise, and safe diamond testing.

20. Presidium Duo Tester PDT Diamond Gemstone Tester -Diamond Testers

By Presidium

  • Retractable thermoelectric probe tip that ensures constant pressure between probe and gemstone
  • Large easy to read analog dial with 15 colored gemstones
  • Consistent and reliable results every time
  • Simple and easy to use
  • Industrys thinnest probe tip (0.6mm) for testing gemstones as small as 0.02ct

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21. HDE High Accuracy Professional Jeweler Diamond Tester For Novice and Expert,Diamond Selector II, L101 -Diamond Testers

By HDE

  • Emits audible sounds to easily differentiate the readings
  • Diamond tester is battery powered for convenience
  • Uses large / small switches for testing diamonds
  • Professional Diamond Selector II will indicate genuine diamond or fake
  • Requires 1 standard 9v battery, which is not included

22. KOSEKY DST1 Tactile Keyboard Switch,Silent,65cN Force,Gold-Plated Spring,Pre Lubed, Tactile Keyswitch 5 Pins for Mechanical Gaming Keyboards (70 Packs) -Diamond Testers

By KOSEKY

  • CompatibleKOSEKY DST1 Linear keyboard Switches are 5 Pin hot-swap design ,suitable for most mechanical keyboard on the market
  • TransparentThe housing design of the switch is black transparent, suitable for matching with most illuminated keyboard
  • MaterialThe spring and contact point are gold-plated, which greatly increases the reliability of the product
  • QuietKOSEKY DST1 Tactile keyboard Switches have a special feedback and silent,suitable Quiet occasions
  • QualityThe switch has been pre lubed and more than 50 million life-cycles

23. Solid 925 Sterling Silver Iced Cross Pendant – Small 1″ Iced Moissanite Pendant – 0.8ct D VVS Moissanite – Passes Diamond Tester – Mens Or Ladies (Natural Silver) -Diamond Testers

By HarlemBling

  • Available In Natural Silver Or 14k Yellow Gold – Base Metal Is 925 Sterling Silver So Never Fades!
  • Iced Out Moissanite That Will Give You The Same Iced Look Of Diamonds Without Spending $1000s
  • Perfect Small Size – 5 Grams – 1″ Nice Pendant For Men Or Ladies – Icy Moissanite Pendant
  • Bale Of Cross Pendant Fits Most Rope, Franco, Figaro, Or Cuban Chains Necklaces Up To 4mm
  • Real Solid 925 Sterling Silver Cross Pendant – Iced 0.8ct D VVS Moissanite – Passes Diamond Tester

24. Solid 925 Sterling Silver Iced Cross Pendant – Small 1″ Iced Moissanite Pendant – 0.5ct D VVS Moissanite – Passes Diamond Tester – Mens Or Ladies (Natural Silver) -United States

By HarlemBling

  • Bale Of Cross Pendant Fits Most Rope, Franco, Figaro, Or Cuban Chains Necklaces Up To 3mm
  • Iced Out Moissanite That Will Give You The Same Iced Look Of Diamonds Without Spending $1000s
  • Perfect Small Size – 3.5 Grams – 1″ Nice Pendant For Men Or Ladies – Icy Moissanite Pendant
  • Available In Natural Silver Or 14k Yellow Gold – Base Metal Is 925 Sterling Silver So Never Fades!
  • Real Solid 925 Sterling Silver Cross Pendant – Iced 0.5ct D VVS Moissanite – Passes Diamond Tester

25. SmartPro SPGE-I Gem Eye I Gem and Diamond Tester Smart Pro -Arts, Crafts & Sewing

By SMARTPRO

  • Portable tester that can be used anywhere
  • Industry’s thinnest probe tip (0.48mm) for testing diamonds as small as 0.01ct
  • High efficiency
  • Identifies metals, simulants and diamonds instantly
  • No waiting time between tests

26. Diamond Tester Pen,WECHIC High Accuracy Professional Jeweler Diamond Tester for Novice and Expert -United States

By WECHIC

  • Package Contents: 1 x Diamond Tester
  • Batteries: 1 x 9v Battery (not included)
  • Emits audible sounds to easily differentiate the readings
  • Professional Diamond Selector II will indicate genuine diamond or fak
  • Uses large / small switches for testing diamonds

27. Dupeakya Professional Diamond Selector II, Gem Tester Pen Portable Electronic Diamond Tester Tool for Jewelry Jade Ruby Stone -Arts, Crafts & Sewing

By Dupeakya

  • This is a portable electronic device for distinguishing real diamonds from other simulated stones
  • As long as the tip is perpendicular to the test masonry and the switch is pressed, the result can be obtained.
  • Small portable electronic devices can be put in any wallet or backpack, and the operation is simple
  • With voice instructions, audible sounds are emitted when the lights are on, so that you can easily distinguish between masonry and stone.
  • 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).
  • 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.
  • It is designed for quick, precise, and safe diamond test.

28. MIUONO Diamond Tester + 10x Magnifier + Tweezers for Novice and Expert (Include Battery) -Arts, Crafts & Sewing

By MIUONO

  • Package Contents: 1 x Diamond Tester, 1 x 9v Battery, 1 x 10x Jeweler’s Loupe, 1 x Tweezers
  • Simple 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)
  • Quick indicate genuine diamond or fake
  • Upgraded high precision diamond selector ll: The upgraded diamond tester is more profession and precision
  • Designed for rapid, accurate and safe diamond testing
  • Fast Results: If the stone is a real diamond, the pen will make a beep sound as well as show at least 9 LED lights.a green indicator will be displayed
  • Portable design: Diamond tester and magnifier are all equipped with convenient carrying cases
  • Through non-destructive testing, the operation is simple and precise

29. cultj Diamond SelectorⅡ+Moissan/Diamond Tester Diamond Tester + Moissanite Tester -Arts, Crafts & Sewing

By cultj

  • Classic Diamond Tester: Diamond Selector II + Moissan/Diamond Tester, stable and accurate performance
  • Portable and hand-held design, It’s ergonomic.
  • Diamond Selector II has the detection mode that can be adjusted according to the ambient temperature and the size of the gems to be tested, the range of the testing environment is wider.
  • Bright dynamic display and sound detection results prompt tone
  • Using the principle of difference of thermal conductivity and electronic conductivity between diamond , mossinate and fake diamond, there are two tests to detect and distinguish colorless diamond,mossinate and fake diamonds.
  • Moissan/Diamond Tester has the function of low battery alarm and automatic power saving.

30. Jewelry Diamond Tester, Practical Jewelry Diamond Selector II Moissanite Tester Portable Testing Tool Set for Novice and Expert -United States

By Zerone

  • How to UseGreen indicator will be showed on Diamond Selector II if the stone is a real diamond
  • It will make continuous buzzing sound when user accidentally touches metal rather than stone
  • It is only used for the distinction of colorless Moissanite
  • Convenient to carryLightweight and compact in size, easy and convenient to carry
  • Main functionDiamond Selector II can help you to distinguish whether your diamond is real or fake
  • Kindly remindMoissanite Tester is a matching instrument with the Diamond Selector II
  • Convenient PU BagDiamond Selector II is equipped with a PU bag and small testing tray for holding loose stones

31. Professional Jewelry Diamond Gem Testers Pen, Portable Diamond Gemstone Detector Checker Tool, Real Diamond Selector ll Kit for Novice and Expert Diamond Tester (Including Battery) -Arts, Crafts & Sewing

By Beaudin

  • Easy to Use: If the diamond is fake, it will not display and make a sound
  • If it is a real diamond, the indicator will light up a bit.
  • Professional Products: A portable electronic device designed for fast, accurate and safe diamond testing.
  • Fastest Effect: Display and indicator, used to test the diamond’s large/small switch +/- 8 points, metal alarm (when the user accidentally hits metal instead of stone, it will sound).
  • Service: If you have any questions about use, please contact us
  • Professional equipment, the use method needs to learn slowly.
  • Package: A small test tray for placing loose gems; 1 9V battery; 1 leather bag; 1 x user manual.
  • We will explain in detail

32. PDMT-A Diamond Mate Electronic Tester A -United States

By Presidium

  • Uses thermal conductivity tests to detect diamond and simulants
  • Metal detector alerts users if contact is accidentally made with gem mounting
  • 1 Year Factory Warranty
  • Instant recovery time in between tests
  • Low power usage and low battery indicator make sure you always have power when you need it

33. Diamond Tester+60X LED Magnifying Glasses Jeweler Tool Kit Combo,for Novice and Expert – Diamond Selector II 9V Battery Included(Diamond Tester+) -Industrial & Scientific

By Molo

  • Intuitive DesignMolo Diamond Tester Pen comes with LED lights and audio indication
  • Application RangeIndustrial Purpose, Circuit Board And Printing , Industry, Medicine, Gardening, Coin, Diamond,Stamp, Jewelry, Appraisal, Education, Geography, Home And Office.
  • Fast ResultsMolo’s Diamond Tester Pen is design to deliver fast, accurate results
  • You will be able to know if something is fake in a matter of seconds.
  • 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
  • Molo’s Diamond Tester Pen and 60X LED Lighted Loupe combo is a must have tool kit when you are going to a garage sale, flea market, swap meet, etc
  • To determine the clarity of a diamond use 60X LED lighted Loupe, magnifying glasses.
  • Both items are small and can fit into any purse or backpack
  • During a test, if the stone tested is a diamond, the LED lights will light up as the stone passes each test conducted by the Diamond detector
  • Simple to UseMolo Diamond Tester Pen is simple to operate to get results, professional(s) are not required
  • Once our Diamond Tester Pen has completed all of its tests, the pen will make a beep sound as well as show a row of fully lite LED lights.
  • PortableMolo Diamond Tester Pen and 60X LED Lighted Loupe each comes with its own convenient carrying cases
  • Alternatively, its also a great tool to have when testing your own jewelry.

34. Compact Gemstone Tester, Diamond Tester, Fashionable for Professional Home -Industrial & Scientific

By Velaurs

  • ◆HIGH-PRECISION DIAMOND TESTER◆ The professional diamond selector will display real diamonds or fake diamonds, LED lights and audio result indications, with strong sensitivity and accuracy.
  • Please contact us directly through Amazon
  • ◆WORRY-FREE AFTER-SALES SERVICE◆ If there is any problem with your flashlight, or you are sure that it is not suitable for you, we will always be with you
  • Let you buy with confidence.
  • ◆MULTIFUNCTIONAL◆ The tester provides a highly compact design, which is very suitable for buying jewelry, buying/trading diamonds, selling real estate, auctions, etc
  • The tester comes with a PU box and a small test platform for fixing loose stones, which is easy to use even for novices.
  • Can be used for fast, accurate and safe diamond testing.
  • We will provide you with refunds and exchanges
  • And the tester is light, compact and easy to carry, designed for fast, accurate and safe diamond testing
  • It is easy to calibrate gems of various sizes.
  • ◆PORTABLE DESIGN◆ The operation of this diamond discriminator is simple and accurate
  • ◆EASY TO USE◆ This diamond tester has a highly compact design that can help you distinguish the difference between real diamonds and fake diamonds

35. Lotustech Diamond Tester,High Accuracy Diamond Tester Pen,Professional Diamond Detector for Novice and Expert(Black,Battery Included) -Arts, Crafts & Sewing

By Lotustech

  • Professional equipment, the use method needs to learn slowly.
  • No harm to diamonds.
  • [Intuitive Design]: Fake crystal, such as cubic zirconium ( CZ ), crystal, glass will be no sounds and lights <9.
  • [Battery included]: Our diamond tester is powered by DC 9V battery and the battery is included.
  • [Easy to Use]: Real Diamond will Emits sounds and lights >=9.
  • [Service]: If you have any questions about use, please contact us
  • We will explain in detail
  • [fast and safe ]: This diamond selector tester designed for quick, precise, and safe diamond testing

37. Gold Silver Platinum Diamond Jewelry Tester Appraisal Kit 10K 14K 18K 22K 24K Electronic Scale Test 30X Eye Loupe Magnifier Precious Metals 999 925 Scrap -Arts, Crafts & Sewing

By GTE

  • AUTHENTIC GTE 2”x 2” JEWELRY TOUCHSTONE FOR SAFE TESTING THAT WON’T DAMAGE YOUR JEWELRY
  • FUN, FAST, AND ACCURATE! DETERMINES THE KARAT OF GOLD, SILVER, AND PLATINUM JEWELRY IN SECONDS!
  • DIGITAL SCALE-DIAMOND TESTER-TRIPLET MAGNIFIER-NEEDLE FILES-GOLD/SILVER TEST BARS
  • ALL-IN-ONE GOLD, SILVER, PLATINUM, & DIAMOND JEWELRY TESTING & APPRAISAL KIT
  • A MUST-HAVE FOR ANYONE WHO WANTS TO INVEST IN GOLD, SILVER, PLATINUM, OR DIAMONDS!

38. Diamond Test Kit with Gem Tester and Digital Pocket Scale High Accuracy Jewelers Test Equipment High Accuracy Diamond Tester Professional Jeweler For Novice and Expert -Industrial & Scientific

By TMISHION

  • This diamond selector tester designed for quick, precise, and safe diamond testing
  • The tester is lightweight, compact and easy to carry.
  • Made of high-quality materials, it is both environmentally friendly and durable, and passes non-destructive testing for easy and accurate operation
  • High-precision diamond tester, professional diamond selector will indicate real diamonds or fake diamonds, can help you distinguish between diamonds are real diamonds or fake diamonds, suitable for jewelry display or identification assistance.
  • No harm to diamonds
  • Have various types of testing tools, 1 x Diamond Tester1 x Diamond Flashlight1 x Diamond Viewer1 x Tweezers1 x Magnifier1 x Ring1 x Diamond Claw, to meet your different needs.
  • Make a sound to give an accurate reading, and if the gem is a real diamond, a diamond indicator is displayed to help you distinguish between a diamond and a fake.
  • If stone is Fake crystal, a simulant such as cubic zirconium ( CZ ), will be no reaction.

39. Mech Assault 2 Lone Wolf – Xbox -Video Games

By Microsoft

  • Deeply-enhanced single player campaign with a compelling storyline
  • Battle for control of the Inner Sphere against live opponents in your Xbox Live – Team up, go on search-and-destroy missions and talk trash in real-time
  • More incredible explosions and devastating destruction and javelins fly through the air and lasers light up the sky
  • For the first time, gamers can step out of their ‘Mechs – go out on foot, jump into other Mechs and hijack other vehicles

40. Professional Gold/Silver Estate Precious Metals Kit, Plus Platinum Test, Digital Diamond Tester and More -Industrial & Scientific

By PuriTest

  • DigiWeigh 600BX electronic jewelry scale with batteries, protective cover/expansion tray, instructions; includes Lifetime Warranty
  • Authentic Culti Diamond Selector II enables you to distinguish between real diamonds and YAG or other simulants; Includes 60-day money back guarantee
  • Enables you to test & weigh samples at home or on-the-go before you buy/sell
  • Six (6) half-ounce bottles of PuriTEST test acids- 10k, 14k, 18k, 22k, Silver, Platinum Testing Acids
  • Includes one extra-large test stone surface, and one small (standard size) stone

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Best Brands

Buying a product from a reputable manufacturer that provides high brand value is one of the most essential things. Based on my research, here are the top brands that make the best diamond tester.

  • HMKIS
  • Hqdz
  • Gemoro
  • StillCool
  • Presidium
  • PRESIDIUM
  • SmartPro
  • Weewooday
  • EURO TOOL
  • TANJIN

The Buyer’s Guide

Although the aim of this list is to help you choose the best option for your needs. This guide shall help you make an informed purchase decision. Here are the few things to consider when choosing a diamond tester.

1. Features

There’s no point in purchasing a diamond tester that doesn’t solve your usage needs. Sometimes, even the best option wouldn’t have all the options you’d need. That’s why list down all your feature requirements and make sure that the option you’ve chosen comes with all of them.

2. Budget

Budget plays an important role, if it wasn’t for the budget, wouldn’t everyone purchase the most expensive option? However, before you decide the budget, I’d recommend you to make a list of features you’d need. In case a feature you need the most isn’t available in your budget range, then there’s no point in buying it, is there?

My advice is to make sure that the product has all the features you need then decide the budget. If a product you’ve chosen isn’t having all the features you need, then you should consider increasing your budget.

3. Value For Money

There are times when you shall come across various diamond tester that shall have all the features you need. However, the price difference shall exist. In a situation like this, it is recommended to value each feature and make sure that you’re not overpaying for a feature you wouldn’t use.

4. Brand, Customer Support, & Warranty

Purchasing a product from a reputed brand is very important. Not only does it guarantee high-quality build, but you also get much better customer support.

You should also make sure that it has a decent warranty, it is really helpful in case a product breaks down due to manufacturing defects. Also, repairs during warranty are generally free of cost (depends on service terms).

5. Individual Product Reviews

You don’t have to watch individual reviews of each diamond tester in this list. However, pick 2-3 options that have all the technical aspects according to your usage needs. Once you’re ready with it, go to YouTube/Amazon and look at video/customer reviews to make sure that the existing buyers are satisfied with the product.

The FAQs

Which is the best diamond tester?

According to my research, the Presidium SDS Synthetic Diamond Screener is the best option.

Is Presidium a reliable brand?

It’s one of the best brands, not only does it make the top-rated diamond tester, but it also is known for its exceptional service.

Which is the cheapest yet powerful diamond tester?

According to me, the Presidium Multi Tester III (PMuT III) All-In-One Instrument for Testing Diamonds, Moissanites and Diamond Simulants is one of the cheapest options available and yet has all the features.

Are there deals going on?

A few of the options in our article are currently available for a discounted price. However, check out the product listing to find more information.

What brands should I consider when purchasing?

Based on my research, these are the top 5 brands: Presidium, SmartPro, Presidium, Presidium, and Gemoro.

Should I buy it online or go to an offline store?

Shopping online comes with a few advantages such as discounted pricing, quick delivery at home. However, if you’re in a hurry or can find the product for a cheaper price in the offline market, consider visiting the offline store.

The Verdict

Choosing the right product isn’t easy and for many of them it could be a time consuming task. However, with this guide, my aim is to help you guys find the perfect diamond tester for your needs.

I’ve done a huge research to ensure that options I’ve listed are among the best. Like mentioned above, I also interviewed many experts to make sure that the enlisted models are high quality.

I hope that you’re able to find the right diamond tester for your usage. If you are still struggling to find one, feel free to comment below or contact me.

About the author

Jeff Lampkin

Jeff Lampkin was the first writer to have joined gamepolar.com. He has since then inculcated very effective writing and reviewing culture at GamePolar which rivals have found impossible to imitate. His approach has been to work on the basics while the whole world was focusing on the superstructures.