Best Diamond Tester

Our Top 20 Best Diamond Tester list was created by The Man Post founder, Paul Crouch, to help users find products that are useful, affordable, and available. The list is updated every month.

Best Diamond Tester

Xinler Accuracy Jewelry-Diamond Tester Pen Professional Jewelry Diamond Tester Tool

$21.99
$15.99
 in stock
Amazon.com
as of June 1, 2022 7:17 am

Features

  • 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 the number of lights equals or exceeds 9, and it beeps, it means the diamond is true. * If the lights is about 9 and it beeps, it means the sapphire is true. * If the number is 6.5-7, it means the agate is true. * If the number is 7-8 , it means the crystal is true. * If the number is 6-7, it means the jade is true.
  • Before Test: 1. Put the battery in the tester. 2. Take off the probe cap. 3. Turn on the switch. 4. Make sure only one light light up on the scale. 5. Make sure the " ready lamp" light on. 6. (If test diamond, you then need to turn on the lights number corresponding to the indoor temperature and diamond weight.). 7. (If test other gems, you'd better calibrate the probe, method: by placing the probe vertically on a glass, then adjusting the light to 5, then test the gems.)
  • ★ NOTICE: * No matter what gemstone you are testing, the probe needle and the tested object must be at a 90° angle. * When testing diamond, your 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.
  • Product size: 16 * 4 * 2.2 cm. weight: 100g. Power needed: 1x 9V battery (not included). If you have any problem about the testing, please contact us, we would love to help.

[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 June 1, 2022 7:17 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
Free shipping
Amazon.com
as of June 1, 2022 7:17 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

Leonnn High Accuracy Diamond Gems Tester, Fashionable Gemstone Tester Tool for Novice and Expert and Professional Jewelers Pen Portable Diamond Gemstone Selector Tool (Black)

$12.99  in stock
2 new from $12.99
Free shipping
Amazon.com
as of June 1, 2022 7:17 am

Features

  • 【Function】: Quickly and accurately mark genuine or fake diamonds. LCD display & LED indicator.Uses large / small switches for testing diamonds,Emits audible sounds to easily differentiate the readings.
  • 【Convenience】: Portable electronic device, powered by battery
  • 【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)
  • 【Readings】: Emits audible sounds, easily distinguish the readings. If the stone is fake, crystal or cubic zirconia, the tester will not beep.
  • 【Customer First】: We provide high-quality after-sales service. If you have any questions,please feel free to contact us

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
1 used from $16.99
Free shipping
Amazon.com
as of June 1, 2022 7:17 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.
  • [Note]: Please ensure that the battery temperature is higher than 10 ℃, can not test metal, save power

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

$269.00  in stock
5 new from $269.00
Free shipping
Amazon.com
as of June 1, 2022 7:17 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

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

$199.00  in stock
7 new from $199.00
Free shipping
Amazon.com
as of June 1, 2022 7:17 am

Features

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

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

$257.49
$209.00
 in stock
11 new from $209.00
1 used from $244.00
Free shipping
Amazon.com
as of June 1, 2022 7:17 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.

SSEF Diamond-Type Spotter and Blue Diamond Tester Made Easy: The "RIGHT-WAY" Guide to Using Gem Identification Tools (The "RIGHT-WAY" Series to Using Gem Identification Tools)

$4.99  in stock
16 new from $4.50
4 used from $4.50
Free shipping
Amazon.com
as of June 1, 2022 7:17 am

Features

Edition1
LanguageEnglish
Number Of Pages22
Publication Date2014-06-17T00:00:01Z

Black Diamond Round-Cut Loose Diamond Enhanced Tester positive Gift box Earth-mined Natural 0.02 ct 1.80 mm

$5.99  in stock
2 new from $4.99
Free shipping
Amazon.com
as of June 1, 2022 7:17 am

Features

  • Black loose diamonds: Black Diamonds are obscure diamonds with black color that come in just a single shading force: Fancy Black. The Black diamonds owe their color to the consideration of graphite and arbitrary bunching all through the diamonds. Black loose diamonds are a great option for black diamond rings, black diamond earrings for women.
  • Round cut loose diamond: Out of all Diamond shapes, Round Diamond is the most popular and attractive shape because of its multiple facets for enhanced brilliance. It has the ability to produce maximum sparkle, brightness, and fire. Round Diamond is a great choice for black diamond rings and black diamond earrings for women. Get the loose diamonds of your choice.
  • Gift Box: Includes a paper gift box for black loose diamond, Instead of buying a gift card these Round cut Black diamonds make very pretty gifts for women or girls.Your gift would be in an elegant gift box wrapped in a velvet pouch. A microfibre cleaning cloth would also be included in a pouch. Nice option for Easter Gifts or Gifts for mom as compared to Gift cards for amazon.

Presidium SDS Synthetic Diamond Screener

$599.00  in stock
2 new from $599.00
2 used from $555.00
Amazon.com
as of June 1, 2022 7:17 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

Gemoro Testerossa Diamond, Moissanite & White Sapphire Tester

$249.00  in stock
10 new from $249.00
2 used from $181.11
Free shipping
Amazon.com
as of June 1, 2022 7:17 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

Best Sellers Diamond Tester Pen+60X Mini LED Magnifying,High Accuracy Jewelry Diamond Tester Tool,Environmental Protection 9V Battery,Professional Diamond Selector for Novice and Expert

$21.99  in stock
Amazon.com
as of June 1, 2022 7:17 am

Features

  • ✔【Intuitive Design】Hqdz Diamond Tester Pen comes with LED lights and audio indication. During a test, if the stone tested is a diamond, the LED lights will light up as the stone passes each test conducted by the Diamond detector. 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.
  • ✔【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. To determine the clarity of a diamond use 60X LED lighted Loupe, magnifying glasses.
  • ✔【Fast Results】Hqdz’s Diamond Tester Pen is design to deliver fast, accurate results. You will be able to know if something is fake in a matter of seconds.
  • ✔【Portable】Hqdz Diamond Tester Pen and 60X LED Lighted Loupe each comes with its own convenient carrying cases. Both items are small and can fit into any purse or backpack. Hqdz’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. 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.

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 June 1, 2022 7:17 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 DIAMONDMATE-C ELECTRONIC DIAMOND TESTER

$149.00  in stock
2 new from $149.00
2 used from $121.50
Amazon.com
as of June 1, 2022 7:17 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

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

$118.90  in stock
2 new from $118.90
Free shipping
Amazon.com
as of June 1, 2022 7:17 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.

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

$17.98  in stock
Amazon.com
as of June 1, 2022 7:17 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.

Rs Mizar Diamondnite Dual Diamond Tester | DIA-650.00

$222.98  in stock
3 new from $222.45
Free shipping
Amazon.com
as of June 1, 2022 7:17 am

Features

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

StillCool Diamond Tester, High Accuracy Dimond Test Pen, Professional Jeweler Diamond Tester Tool

$21.99
$14.99
 in stock
1 used from $13.49
Free shipping
Amazon.com
as of June 1, 2022 7:17 am

Features

  • LCD display & LED indicator.
  • 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.
  • Powered by DC 9V battery x 1 (Not Included)

cultj Diamond Combo Tester II Diamond Tester Moissanite Tester Low Conductivity moissanite Tester HPHT Type lab-Grown Diamond Tester

$265.00  in stock
Amazon.com
as of June 1, 2022 7:17 am

Features

  • Classic Diamond Combo Tester II, stable and accurate performance. Designed specially to distinguish between colorless diamonds, HPHT type lab-grown diamonds, and mossinate. it's not effective for CVD type lab-grown diamonds.
  • Using the principle of different thermal conductivity and electrical conductivity between diamond ,HPHT type lab-grown diamond, mossanite and fake diamonds, A single test can distinguish colorless diamond, HPHT type lab-grown diamond ,mossinate and fake diamonds. It has a stronger detection ability for low conductivity mossinate.
  • It has alarm function when the probe touches metal and has the function of low battery alarm.
  • The tester doesn’t work for ten minutes, it will automatically extinguish the indicator light, and make a "beep" sound, It has the function of warning the user to turn off the power.
  • Bright dynamic display and sound detection results prompt tone. Portable and hand-held design, It’s ergonomic.

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