Best Diamond Tester in USA

There are a lot of products and services available in the market. Consumers find it difficult to choose the best product that meets their needs. In order to help consumers with that process, we have compiled a list of Top 20 Best Diamond Tester, which will allow them to make a more informed decision when buying any product or service.

Before finalizing these products, our team considered numerous factors, such as customer feedback, features, specifications, and price. This list is a useful tool for all of our readers who are looking for The 20 Best Diamond Tester. Hopefully you find it useful!

Best Diamond Tester

HMKIS Diamond Tester Pen, High Accuracy Jewelry Diamond Tester+ 60X Mini LED Magnifying, Professional Diamond Selector for Novice and Expert, Thermal Conductivity Meter

$25.99
$18.99
 in stock
Amazon.com
as of August 12, 2022 9:12 am

Features

  • [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.

[Upgraded] High Accuracy Diamond Tester Professional Jeweler for Novice and Expert - Diamond Selector II 9V Battery Included(Black Diamond Testers)

$16.99  in stock
Amazon.com
as of August 12, 2022 9:12 am

Features

  • [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.

GemOro Testerossa Talking Diamond, Moissanite & White Sapphire Tester, Silver

$249.00  in stock
4 new from $249.00
1 used from $135.11
Free shipping
Amazon.com
as of August 12, 2022 9:12 am

Features

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

(Newest) Diamond Tester Pen, High Accuracy Jewelry Diamond Teste Portable Electronic Diamond Tester Tool for Jewelry Jade Ruby Stone(with Battery)

$16.33
$14.88
 in stock
Amazon.com
as of August 12, 2022 9:12 am

Features

  • 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

Presidium Adamas Diamond and Moissanite Tester Authenticating Diamonds

$399.00  in stock
Amazon.com
as of August 12, 2022 9:12 am

Features

  • 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
  • DYNAMIC MICRO LED DISPLAY: Bright LED display provides clear and precise results. Automatic power off after 2 minutes of inactivity.
  • SLEEK ERGONOMIC STYLING: Sleek light and portable design with chrome-brushed tip and ergonomic grip provides an easy and comfortable hand hold. Power with 3 x AAA batteries or included USB cable and adapter
  • EASY-TO-USE INTERCHANGEABLE PROBE: Retractable thermoelectric probe tip that ensures constant pressure between probe and gemstone, for enhanced accuracy. Damaged probes are easily replaced without downtime.
  • BUILT-IN MEMORY: Memory chip conveniently stores up to 500 previous test records.

Presidium Adamas Diamond/Moissanite Tester Package USB Charger and Optional Replacement Tip

 out of stock
Amazon.com
as of August 12, 2022 9:12 am

Features

  • Identifies diamonds, moissanites, simulants and metals instantly
  • Accurate testing on diamonds as small as 0.02ct and diamond melee as small as 0.01ct (Micro Tip Required)
  • Retractable thermoelectric probe tip that ensures constant pressure between probe and gemstone, for enhanced accuracy
  • Light and portable, Simple and easy to use and compatible with OMI web app
  • Includes Presidium Adamas Tester as well as a 100-240V USB Charger

DANOPLUS Professional Diamond Moissanite Tester, High Accuracy Jewelry Test Tool Kit Combo, 2pt Gemstone Factory Calibrated Identifier Device

$113.99  in stock
2 new from $113.99
1 used from $104.87
Free shipping
Amazon.com
as of August 12, 2022 9:12 am

Features

  • ACCURATE & RELIABLE: This device is designed to help you quickly determine diamond and moissanite from other fake stones. It can distinguish gemstones as small as 2 pt.
  • 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.
  • WITH BUILT- IN METAL DETECTOR: Metal detector signals if the metal setting is touched instead of the stone. Without this feature, other testers can indicate a real diamond when you unknowingly touch the setting even if the diamond is fake.
  • NON-SLIP DESIGN: 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 & DEPENDABLE: With its 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.

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

$257.49
$208.99
 in stock
12 new from $208.98
1 used from $244.00
Free shipping
Amazon.com
as of August 12, 2022 9:12 am

Features

  • 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.

Gemoro Testerossa Diamond, Moissanite & White Sapphire Tester

$249.00  in stock
11 new from $249.00
4 used from $182.34
Free shipping
Amazon.com
as of August 12, 2022 9:12 am

Features

  • Identifies, detects and separates diamond from CZ, moissanite and white sapphire with New Enhanced M
  • New Enhanced Moissanite Testing Technology for low conductivity stone identification
  • 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
  • Unprecedented 10-YEAR PROBE TIP WARRANTY; Lifetime Limited Replacement Warranty on the tester

SmartPro SPGE-I Gem Eye I Gem and Diamond Tester Smart Pro

$249.00  in stock
2 new from $249.00
Amazon.com
as of August 12, 2022 9:12 am

Features

  • 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

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

$269.00  in stock
Amazon.com
as of August 12, 2022 9:12 am

Features

  • 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.

Presidium Duo Tester PDT Diamond Gemstone Tester

$486.25  in stock
Amazon.com
as of August 12, 2022 9:12 am

Features

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

PRESIDIUM DIAMONDMATE-C ELECTRONIC DIAMOND TESTER

$135.00  in stock
3 new from $135.00
2 used from $121.50
Free shipping
Amazon.com
as of August 12, 2022 9:12 am

Features

  • Verifies authenticity of diamonds instantly
  • Thin probe tip (.6mm) for testing diamonds as small as .02ct
  • Retractable thermoelectric probe tip for enhanced accuracy that ensures constant pressure between probe and gemstone
  • No wait time between test
  • Metal alert buzzer

GemOro Ultratester 3+ Diamond, Moissanite & White Sapphire Tester, Black

$199.00  in stock
7 new from $199.00
Free shipping
Amazon.com
as of August 12, 2022 9:12 am

Features

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

Gemlogis Vista Natural Diamond Segregator

$599.00  in stock
2 new from $599.00
Amazon.com
as of August 12, 2022 9:12 am

Features

  • Test loose or mounted jewelry stones
  • Quick identification of potential CVD/HPHT stones
  • Testing Range: > 0.02ct
  • Colorless to near colorless gemstones (D-J)
  • One-year manufacturer warranty

Diamond Tester Pen, High Accuracy Jewelry Diamond Tester Pen Professional Diamond Detector, Electronic Diamond Gem Tester and Tester Pen 60X Magnifying Glasses Tool Kit for Novice Expert

 out of stock
Amazon.com
as of August 12, 2022 9:12 am

Features

  • 【Easy to use】 Place the tip of the diamond tester gently on the gemstone. If the diamond is fake, crystalline or cubic zirconia, the tester will not beep. An excellent diamond tester tool kit, suitable for handling any exposed or mounted diamonds and gems.
  • 【Intuitive design】 Our gemstone tester has an intuitive design, light and portable, and the jewelry diamond tester is equipped with LED lights and audio instructions. As long as the tip is perpendicular to the test masonry and the switch is pressed, the result can be obtained.
  • 【Quick Identification】You just turn on our diamond test pen detector; place the tip of the diamond tester on the gemstone, and a single tap is enough. In providing fast and accurate results. You will be able to know in a few seconds whether an item is fake or not.
  • 【Accessory tools】 Magnifying glass (small microscope) equipped with 60X LED illumination. Diamond test pen can be used for gems, coins, antiques, stamps, reading, inspection, etc. Diamond tester pen is designed for fast, precise and safe diamond testing.
  • 【Professional Service】 If you have any questions about our diamond tester pen, please contact us. We have a professional dedicated to assisting you and help you answer any questions you may have.

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

$269.00  in stock
6 new from $269.00
Free shipping
Amazon.com
as of August 12, 2022 9:12 am

Features

  • 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

Dupeakya Professional Diamond Selector II, Gem Tester Pen Portable Electronic Diamond Tester Tool for Jewelry Jade Ruby Stone

$16.99  in stock
Amazon.com
as of August 12, 2022 9:12 am

Features

  • [FAST AND PRECISE ]: This gemstone tester pen is not only a diamond tester but also a multi-gemstone tester. It is designed to detect if a gemstone is real or fake, including: diamond, sapphire, crystal, ruby, agate, jadeite, etc. Professional Diamond Selector designed for quick, precise, and safe diamond testing.
  • [SIMPLE TO USE ]: Diamond Tester Pen is simple to operate to get results. 1. Put the battery in the tester. 2. Take off the probe cap. 3. Turn on the switch. 4. Make sure only one light lights up on the scale. 5. Make sure the " ready lamp" light is on. 6. (If test diamond, you then need to turn on the number of the light corresponding to the indoor temperature and diamond weight.).
  • [TEST RESULT ANALYSIS ]: If lights >= 9 and have sounds, it is real diamond. If lights < 9 and no sounds, it is not diamond. If lights is 7 or 8, it is true crystal. If lights is 6 or 7, it is true jade. If lights is 4 or 5, it is glass
  • [NOTICE]: * When testing, the probe needle and the tested object must be at a 90° angle. * 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. * Don't wear gloves.
  • [PACKAGE CONTENTS ]: 1 x diamond tester, 1 x leather case, 1 x test platform, 1 x user manual. The power needed: 1x 9V battery (not included). If you have any questions about use, please feel free to contact us.

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)

$21.99
$20.52
 in stock
Amazon.com
as of August 12, 2022 9:12 am

Features

  • 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
  • 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
  • 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
  • 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

Presidium SDS Synthetic Diamond Screener

$599.00  in stock
3 new from $599.00
3 used from $555.00
Amazon.com
as of August 12, 2022 9:12 am

Features

  • Advanced technology that measures a diamond’s UV light transmittance ability
  • 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
  • Instantaneous clear results within 2 seconds
  • Blue light to illuminate the testing pad

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