Best diamond testers

The Best Diamond Testers for 2024: How to Identify Genuine Diamonds

Diamonds are among the most valuable and sought-after gemstones in the world, but they are also one of the most commonly counterfeited. As a consumer looking to purchase a diamond, or a diamond enthusiast or collector looking to add to your collection, it’s essential to be able to identify genuine diamonds and avoid the disappointment and financial loss that can come with purchasing a fake.

That’s where diamond testers come in – these devices are specifically designed to help you verify the authenticity of diamonds quickly and accurately. In this article, we’ll explore the various types of diamond testers available, factors to consider when choosing a diamond tester, and provide you with our top picks for the best diamond testers on the market.

We’ll also show you how to use a diamond tester, and other methods you can use to verify the authenticity of diamonds. By the end of this article, you’ll have all the information you need to confidently identify genuine diamonds and make informed purchasing decisions.

Our Top Picks for Best Diamond Testers

Diamonds are a significant investment, so it’s crucial to have a reliable and accurate diamond tester to ensure that you’re getting the real deal. With so many options on the market, it can be overwhelming to choose the best one. We’ve compiled a list of our top picks for the best diamond testers available to make your decision easier.

1. Presidium Instruments Gem Tester II

Presidium Instruments Gem Tester II

First on our list is the Presidium Gem Tester II, which tests diamonds and colored gems, making it versatile for any jewelry collection. It uses thermal conductivity to distinguish between diamonds and simulants, making it an excellent choice for detecting lab-grown diamonds.

The Presidium Instruments Gem Tester II (PGT II) with Assisted Thermal Calibration (ATC) is an indispensable tool for diamond enthusiasts, collectors, and professionals who want to identify the authenticity of their precious stones. This compact and portable device can quickly and accurately distinguish diamonds, moissanites, and 16 types of common colored gemstones.

Features:

  • Assisted Thermal Calibration (ATC) for easy self-calibration to your testing environment
  • Thinnest retractable probe tip in the industry for increased precision
  • Clear and easy-to-read analog dial for simple and intuitive use
  • Consistently reliable results
  • Identifies diamonds, moissanites, and 16 types of common colored gemstones

Pros:

  • Quick and accurate identification of diamonds, moissanites, and common colored gemstones
  • Easy to use with a clear and intuitive analog dial
  • Thinnest retractable probe tip in the industry for increased precision
  • Consistent and reliable results every time

Cons:

  • May require some calibration adjustments depending on testing environment
  • Analog dial may not be as precise as digital displays

Key Specifications for Presidium Instruments Gem Tester II:

FeatureSpecification
Assisted Thermal CalibrationIncluded for easy self-calibration
Probe Tip ThicknessIndustry’s thinnest retractable probe tip
Gemstone IdentificationDiamonds, moissanites, and 16 types of common colored gemstones
DisplayClear and easy-to-read analog dial
ReliabilityConsistent and reliable results every time
PortabilityCompact and portable

Overall, the Presidium Instruments Gem Tester II (PGT II) with Assisted Thermal Calibration (ATC) is a versatile and reliable tool for identifying diamonds, moissanites, and common colored gemstones. Its compact and portable design makes it easy to take on the go, while its thinnest retractable probe tip in the industry provides increased precision. Though it may require some calibration adjustments depending on your testing environment, this device consistently delivers reliable and accurate results. If you are in the market for a gemstone tester, the Presidium Instruments Gem Tester II is definitely worth considering.



2. GemOro Ultratester 3+

GemOro Ultratester 3+

The GemOro Ultratester 3+ is a top-of-the-line diamond tester that utilizes UV fluorescence to distinguish between diamonds and simulants. It’s also equipped with a metal alert feature, which alerts the user if the stone being tested is metal coated, preventing false positives.

For consumers and diamond enthusiasts who are looking for a reliable and accurate way to verify the authenticity of their diamonds or add to their collection, the GemOro Ultratester 3+ is an excellent choice. This diamond, moissanite, and white sapphire tester features new exclusive UV-F1 moissanite identification technology, making it capable of detecting the widest range of electrically conductive moissanite, including the new super-low electrically conductive Forever One moissanite.

Features:

  • Glowing probe tip and light pipe indication for diamond, moissanite, white sapphire, and metal alert
  • Sleek ergonomic design with finger grip pads and LED stone illumination for easy testing
  • Unique beep tones for different gemstone identification
  • Can be used with optional patented GemOro Ultra Dock 3 charging station and test stone magnifier attachment
  • Auto-off function to preserve battery life

Pros:

  • New exclusive UV-F1 moissanite identification technology capable of detecting a wide range of moissanite, including the super-low electrically conductive Forever One moissanite
  • Comes with a protective ballistic nylon carrying case, aluminum loose stone holder, and GemOro test stone cloth
  • Can identify and separate diamond from CZ, moissanite, and white sapphire
  • Fast warm-up time and intuitive design make it easy to use
  • Auto-off function helps preserve battery life

Cons:

  • More expensive than some other diamond testers on the market

Key Specifications for GemOro Ultratester 3+:

FeatureSpecification
Gemstone identificationDiamond, Moissanite, White Sapphire, Metal Alert
Glowing probe tip indicationGreen = Diamond, Blue = Moissanite, Pink = White Sapphire
Battery(3) user-replaceable AAA NiMH rechargeable batteries
ChargingUniversal multi-voltage 100V-240V AC adapter/charger cube
AccessoriesProtective ballistic nylon carrying case, aluminum loose stone holder, GemOro Test Stone Cloth


3. Mizar Diamond Tester 

Mizar Diamond Tester

The Mizar Prestige Series II by RS Mizar is another popular diamond tester that is easy to use and provides quick results. It uses light to distinguish between diamonds and simulants and is lightweight and portable.

If you’re in the market for a diamond tester that can also identify other gemstones, the Mizar Diamond Tester is a great choice. With automatic and manual modes and advanced testing features, this tester is ideal for consumers looking to verify the authenticity of their diamond purchases or identify the quality of diamonds they are interested in buying. The tester’s low battery indicator and 2-year warranty add to its appeal.

Features:

  • Can identify diamonds, CZs, and other gemstones
  • Automatic and manual modes with advanced testing features
  • Linear display for increased information
  • Adjustable gain for small stone sizes
  • Compensation for ambient temperature and stone heating
  • Fast warm-up time of only ten seconds
  • Auto shut-off to save battery power
  • Anti-fade circuit to compensate for stone heating
  • Low battery indicator for accurate readings

Pros:

  • Can identify a range of gemstones, not just diamonds
  • Advanced testing features and adjustable gain for small stone sizes
  • Anti-fade circuit to compensate for stone heating
  • Fast warm-up time and auto shut-off for convenience
  • Low battery indicator for accurate readings
  • 2-year warranty for added peace of mind

Cons:

  • Runs off a 9-volt battery, which may need to be replaced frequently with heavy use

Key Specifications for Mizar Diamond Tester:

FeatureSpecification
Gemstones identifiedDiamonds, CZs, and others
Testing modesAutomatic and manual
DisplayLinear
Gain adjustmentAdjustable for small stones
Temperature compensationYes, for ambient and stone
Warm-up time10 seconds
Auto shut-offYes
Anti-fade circuitYes
Battery9-volt
Low battery indicatorYes
Warranty2 years

Overall, the Mizar Diamond Tester is a reliable and versatile option for anyone looking to test diamonds and other gemstones. Its advanced testing features, compensation for ambient temperature and stone heating, and anti-fade circuit make it a standout product in its class. The only downside is that it runs off a 9-volt battery, which may need to be replaced frequently, but this is a minor inconvenience compared to the tester’s many benefits. With a 2-year warranty, you can trust in the durability and accuracy of this tester for years to come.



4. Presidium Multi Tester III

Presidium Multi Tester III

The Presidium Multi Tester III (PMuT III) is an all-in-one instrument designed for testing diamonds, moissanites, and diamond simulants. It is the world’s first tester that can detect both colorless diamonds and moissanites in a single device. The PMuT III is perfect for professional jewelers, gemologists, and those looking to buy diamonds or diamond simulants.

Features:

  • Ergonomic handheld design with a rubberized anti-slip grip for easy handling
  • Retractable probe tip with the industry’s thinnest size of 0.6mm for consistent pressure against the gemstone during testing
  • Tests colorless diamonds as small as 0.02ct
  • 180-degree multi-viewing LED display for easy readability for both right and left-handed use
  • All-in-one instrument that tests for both colorless diamonds and moissanites
  • Powered by 3 AAA batteries
  • Comes with a convenient carrying case for portability

Pros:

  • Ergonomic and anti-slip design for easy handling
  • Retractable probe tip for more reliable and consistent results
  • Can test for both diamonds and moissanites in one device
  • Thin probe tip allows for testing of small diamonds
  • Easy-to-read LED display for both right and left-handed use
  • Comes with a carrying case for portability

Cons:

  • Batteries are not included
  • May not be as accurate as more expensive, specialized testers for diamonds

Key Specifications for Presidium Multi Tester III:

FeatureSpecification
Probe tip size0.6mm
Gemstones detectedColorless diamonds, moissanites, diamond simulants
Power source3 AAA batteries (not included)
Display180-degree multi-viewing LED display
PortabilityComes with a carrying case
Warranty1 year

Overall, the Presidium Multi Tester III is an excellent all-in-one device that can test for diamonds, moissanites, and diamond simulants with its thin, retractable probe tip and easy-to-read LED display. It is perfect for those looking for a portable, handheld tester with reliable results. However, for those who require the most precise results, a more specialized and expensive diamond tester may be necessary.



5. PRESIDIUM PDT II Duo Tester

312 gZ9fa0L

The Presidium PDT II Duo Tester is an innovative tool that offers two proven testing methods for gemstones, making it the only comprehensive tool in the market. It can differentiate between diamonds and their simulants based on thermal conductivity and reflective indexes. This tester is ideal for jewelers, gemologists, and hobbyists who need to quickly and accurately identify the authenticity of their precious gemstones.

Features:

  • Assisted Thermal Calibration (ATC) function using newly redesigned in-built calibration discs ensures accurate and consistent tests for both indoor and outdoor operations.
  • Probe pen with a retractable probe tip that ensures consistent pressure against the gemstone during testing for reliable results.
  • The thinnest probe tip size in the industry of 0.6mm allows for testing of gemstones as small as 0.02ct.
  • Can generally test coated gemstones.
  • Combination of thermal conductivity and reflective indexes helps to differentiate diamonds from their simulants.

Pros:

  • Dual testing methods provide more reliable results and better accuracy.
  • The thinnest probe tip size in the industry allows for testing of very small gemstones.
  • Retractable probe tip ensures consistent pressure for more reliable testing.
  • Comes with Assisted Thermal Calibration function for accurate and consistent tests.

Cons:

  • Cannot differentiate between natural and synthetic colored gemstones.

Key Specifications for Presidium PDT II Duo Tester:

SpecificationDescription
Testing MethodsThermal conductivity and reflective indexes
Probe Tip Size0.6mm
Minimum Size of Gemstone Tested0.02ct
CalibrationAssisted Thermal Calibration (ATC) with built-in calibration discs
Power Source3 x AAA batteries (included)
Weight0.5 lbs
Dimensions9.4 x 4.4 x 2.4 inches
Warranty1 year

In summary, the Presidium PDT II Duo Tester is a powerful tool that provides reliable results and accurate testing of gemstones. It is a must-have for jewelers, gemologists, and hobbyists who need to ensure the authenticity of their precious stones. While it may not differentiate between natural and synthetic colored gemstones, it still offers a comprehensive set of features that make it a top choice for those in need of a reliable and accurate gemstone tester.



6. cultj Diamond Combo Tester II

cultj Diamond Combo Tester II

The cultj Diamond Combo Tester II is an accurate and stable diamond tester designed for distinguishing between colorless diamonds, HPHT type lab-grown diamonds, and moissanite. It is a great tool for jewelers, diamond buyers, and anyone interested in diamond testing.

Features

  • Distinguishes between colorless diamonds, HPHT type lab-grown diamonds, and moissanite
  • Uses the principle of different thermal and electrical conductivity for diamond testing
  • Alarm function when the probe touches metal and low battery alarm
  • Automatically turns off after ten minutes of inactivity
  • Bright dynamic display and sound detection results prompt tone
  • Ergonomic and portable handheld design

Pros

  • Accurate and stable performance
  • Distinguishes between different types of diamonds and moissanite
  • Stronger detection ability for low conductivity moissanite
  • Alarm function for added safety
  • Automatically turns off after ten minutes of inactivity

Cons

  • Not effective for CVD type lab-grown diamonds

Key Specifications for cultj Diamond Combo Tester II

SpecificationDetails
Testing CapabilityColorless diamonds, HPHT type lab-grown diamonds, and moissanite
Detection AbilityStronger for low conductivity moissanite
Power9V battery
Auto Power OffYes, after 10 minutes of inactivity
Alarm FunctionYes, for metal contact and low battery
Probe Tip SizeN/A
DisplayDynamic with sound detection results prompt tone
SizeHandheld and portable design
WeightN/A

Overall, the cultj Diamond Combo Tester II is a reliable and accurate diamond tester that is easy to use and portable. It distinguishes between different types of diamonds and moissanite and has added safety features like the alarm function and automatic power off. The only downside is that it is not effective for CVD type lab-grown diamonds.



7. Presidium ARI Synthetic Diamond Screener

Presidium ARI Synthetic Diamond Screener Tester Hand Held Gem Testing Machine

The Presidium ARI Synthetic Diamond Screener is a handheld diamond tester designed to quickly and accurately distinguish between colorless diamonds and moissanites from D to J colors. It’s perfect for jewelry enthusiasts, gemologists, and jewelers who need a reliable and efficient tool to test their diamonds and moissanites.

Features

  • Handheld design for easy use and portability
  • Measures UV light absorbance ability of diamonds and moissanites within 3 seconds
  • Six language selection in graphic user interface with touchscreen color LCD display
  • Tested on loose or mounted diamonds in all jewelry settings; polished diamonds and moissanites as small as 0.02ct
  • UV retractable optical probe activates when the tip is in contact with the diamond; alert buzzer sounds when there is a loss of contact between the tip and the stone
  • Stylish ergonomic design
  • Battery operated with AAA battery
  • Standby time of 10 minutes from the last measurement

Pros

  • Quick and accurate measurement of colorless diamonds and moissanites
  • Easy to use with touchscreen color LCD display and alert buzzer
  • Portable and battery operated for convenience
  • Tested on loose or mounted diamonds in all jewelry settings; polished diamonds and moissanites as small as 0.02ct
  • Six language selection in graphic user interface

Cons

  • Limited to testing only colorless diamonds and moissanites from D to J colors
  • Does not test for synthetic diamonds created through the CVD process

Key Specifications for Presidium ARI Synthetic Diamond Screener

SpecificationDescription
Testable MaterialsColorless diamonds and moissanites from D to J colors
DisplayTouchscreen color LCD display
ProbeUV retractable optical probe
Testing Time3 seconds
BatteryAAA battery
Standby Time10 minutes from the last measurement
Tested OnLoose or mounted diamonds in all jewelry settings; polished diamonds and moissanites, as small as 0.02ct

Bottom Line

The Presidium ARI Synthetic Diamond Screener is an excellent handheld diamond tester that provides quick and accurate measurements of colorless diamonds and moissanites. It’s perfect for jewelry enthusiasts, gemologists, and jewelers who need a reliable and efficient tool to test their diamonds and moissanites. However, it’s important to note that this tester does not test for synthetic diamonds created through the CVD process. Overall, the Presidium ARI Synthetic Diamond Screener is a great investment for those looking for a portable and easy-to-use diamond tester.



Factors to Consider When Choosing a Diamond Tester

Accuracy and Reliability

When it comes to diamond testers, accuracy and reliability are crucial factors to consider. A diamond tester should be able to distinguish between real diamonds and other gemstones or imitations accurately. A reliable diamond tester should also provide consistent results regardless of the environment, lighting, or temperature.

To ensure accuracy and reliability, consider investing in a diamond tester that uses multiple testing methods. For example, a tester that uses thermal conductivity and electrical conductivity testing methods provides more accurate and reliable results than a tester that uses only one method. It is also essential to choose a reputable brand with positive reviews and customer feedback.

Ease of Use

The best diamond tester should be easy to use, even for those who are not experts in gemology. It should have clear instructions and a simple interface that makes it easy to interpret the results. An intuitive user interface and straightforward operation make it easier for consumers to test their diamonds confidently.

Additionally, consider a diamond tester that requires minimal preparation or calibration. A device that is easy to set up and requires little maintenance is ideal for those who want a hassle-free diamond testing experience.

Affordability

Diamond testers range in price, and while you want to get the best possible device, it is important to consider your budget. An expensive tester does not always mean it is the best in terms of accuracy and reliability. There are affordable options that provide accurate results and are suitable for those who do not want to spend a lot of money.

However, it is important to balance affordability with quality. Cheap diamond testers may not provide consistent and reliable results, and you could end up spending more money in the long run if you have to replace them frequently.

Portability

Portability is another important factor to consider when choosing a diamond tester. If you are a collector or frequently purchase diamonds, you may need to test them on the go. A portable diamond tester allows you to carry it with you wherever you go and test diamonds quickly and easily.

Consider a diamond tester that is compact and lightweight, making it easy to carry in your pocket or purse. A device with a long battery life is also important, ensuring that you can test multiple diamonds without worrying about running out of power.

Types of Diamond Testers

Thermal Conductivity Testers

Thermal conductivity testers are devices that measure the heat transfer rate of a diamond. This method of testing relies on the fact that diamonds conduct heat much better than any other material, making it a reliable indicator of a diamond’s authenticity. These testers use a probe that heats up and touches the diamond, measuring the time it takes for the diamond to cool down. This time is then compared to the time it takes for a reference diamond to cool down, which provides an accurate reading of the diamond’s thermal conductivity.

If you’re looking to buy a diamond, a thermal conductivity tester can help you determine if it’s a real diamond or not. However, this type of tester doesn’t provide information about the diamond’s quality, so you’ll need to use other methods to determine that. Thermal conductivity testers are also useful for diamond collectors and enthusiasts who want to verify the authenticity of their diamond jewelry or add to their collection.

Electrical Conductivity Testers

Electrical conductivity testers measure the electrical conductivity of a diamond. Diamonds are insulators and do not conduct electricity, so if a diamond conducts electricity, it’s a clear indication that it’s not a real diamond.

These testers use a probe that sends an electrical current through the diamond, measuring the resistance of the diamond to the current. The level of resistance is then compared to the resistance of a reference diamond, providing an accurate reading of the diamond’s electrical conductivity.

If you’re looking to verify the authenticity of a diamond, an electrical conductivity tester can help you determine if it’s real or not. However, like thermal conductivity testers, this type of tester doesn’t provide information about the quality of the diamond. Electrical conductivity testers are also useful for diamond collectors and enthusiasts who want to verify the authenticity of their diamond jewelry or add to their collection.

Ultraviolet Light Testers

Ultraviolet light testers use UV light to determine if a diamond is real or not. This method relies on the fact that diamonds fluoresce under UV light. The tester emits UV light onto the diamond, and the diamond’s reaction to the light is observed. If the diamond emits a blue fluorescence, it’s a good indication that it’s a real diamond. However, if the diamond emits no fluorescence or a different color fluorescence, it may be a fake diamond.

If you’re looking to buy a diamond, an ultraviolet light tester can help you determine if it’s real or not. However, this type of tester doesn’t provide information about the quality of the diamond. Ultraviolet light testers are also useful for diamond collectors and enthusiasts who want to verify the authenticity of their diamond jewelry or add to their collection.

Refractive Index Testers

Refractive index testers measure the refractive index of a diamond. The refractive index is a measure of how much light is bent as it passes through a diamond. This method of testing relies on the fact that diamonds have a very high refractive index, making it a reliable indicator of a diamond’s authenticity. These testers use a probe that shines a light into the diamond and measures the angle at which the light is bent.

If you’re looking to buy a diamond, a refractive index tester can help you determine if it’s real or not. However, like other types of testers, this type of tester doesn’t provide information about the quality of the diamond. Refractive index testers are also useful for diamond collectors and enthusiasts who want to verify the authenticity of their diamond jewelry or add to their collection.

Diamond/Moissanite Testers

Diamond/Moissanite testers are devices that can distinguish between a diamond and a moissanite, which is a diamond simulant. These testers use a probe that sends an electrical current through the diamond or moissanite, measuring the resistance of

How to Test a Diamond Using a Diamond Tester

Step-by-step guide on using a diamond tester

So, you want to test your diamond to make sure it’s the real deal? Good thinking! A diamond tester is a handy tool that can help you identify whether a gemstone is a real diamond or an imitation.

Here’s how to use it:

First, make sure the diamond tester is calibrated. This involves adjusting the sensitivity of the instrument so that it gives accurate readings.

Next, turn on the diamond tester and wait for it to warm up. Once it’s ready, touch the tip of the tester to the diamond in question. If the tester beeps or lights up, the diamond is most likely real. If it doesn’t, the diamond may be a fake or an imitation.

It’s important to note that a diamond tester can only detect whether a gemstone is a real diamond or not. It cannot determine the quality of the diamond, such as its color or clarity. For that, you’ll need to consult a professional gemologist.

Tips for accurate testing

Now that you know how to use a diamond tester, here are some tips to help ensure accurate results:

Make sure the diamond is clean and free from any dirt or debris. This can affect the accuracy of the test.

Test the diamond in multiple spots to ensure consistent results.

Use a diamond tester in conjunction with other testing methods, such as a loupe or magnifying glass, for a more thorough analysis.

Remember, while a diamond tester can be a useful tool, it’s not foolproof. Always use your best judgement and consult a professional if you have any doubts about the authenticity of a diamond.

Testing your diamond with a diamond tester is a simple and effective way to verify its authenticity. Just be sure to follow the proper steps and use your best judgement to ensure accurate results.

Other Methods of Verifying Diamond Authenticity

Certification and Grading Reports

When you’re shopping for diamonds, you’ll often come across certification and grading reports, which are documents that provide information about a diamond’s quality, characteristics, and value. These reports are typically issued by third-party organizations, such as the Gemological Institute of America (GIA), and they can help you verify the authenticity of your diamond purchase.

Certification and grading reports can provide a lot of information about a diamond, including its carat weight, color, clarity, cut quality, and other characteristics. They can also include diagrams, photographs, and other details that can help you identify your diamond and assess its value. If you’re considering a diamond purchase, be sure to ask the seller if they have a certification or grading report for the diamond you’re interested in.

Visual Inspection

Visual inspection is another method of verifying diamond authenticity, and it involves examining the diamond with the naked eye to look for any signs of wear, damage, or inconsistencies. A trained eye can identify many characteristics of a diamond, including its color, clarity, and cut quality.

When inspecting a diamond, it’s important to examine it under different lighting conditions and from different angles to get a complete picture of its appearance. You should also look for any inclusions, or imperfections, that may be visible under magnification.

Weighing and Measuring

Diamonds are measured in carats, which is a unit of weight equal to 0.2 grams. Weighing a diamond can help you verify its authenticity and assess its value, as larger diamonds are generally more valuable than smaller ones.

In addition to weighing a diamond, you can also measure its dimensions to get an idea of its shape and proportions. The length, width, and depth of a diamond can all affect its appearance and value, so it’s important to consider these factors when evaluating a diamond.

Magnification

Magnification is a powerful tool for examining diamonds, as it allows you to see the smallest details and imperfections that may be invisible to the naked eye. A jeweler’s loupe, which is a small magnifying glass, can be used to examine a diamond and look for inclusions or other characteristics that may affect its value.

If you’re interested in collecting or investing in diamonds, magnification can be a valuable tool for identifying unique or rare specimens. However, it’s important to note that not all diamonds are created equal, and the value of a diamond depends on a variety of factors, including its quality, rarity, and market demand.

Frequently Asked Questions

What is the most reliable diamond tester?

The most reliable diamond tester will depend on your specific needs and the types of diamonds or gemstones you need to test. The Presidium PDT II Duo Tester and the GemOro UltraTester II are both highly rated and offer accurate testing for diamonds and gemstones.

Are diamond testers any good?

Yes, diamond testers are a reliable and effective way to determine whether a stone is a genuine diamond or a simulant. However, it is important to note that not all diamond testers are created equal, and some may be more accurate or reliable than others.

Will genuine diamonds pass diamond tester?

Yes, genuine diamonds will pass a diamond tester that is designed to detect the thermal conductivity of diamonds. However, it is important to note that some diamond testers may not be effective at distinguishing between lab-grown diamonds and natural diamonds.

What stone can pass a diamond tester?

Only diamonds will pass a diamond tester that is designed to detect the thermal conductivity of diamonds. Other gemstones, including moissanite and cubic zirconia, will not pass a diamond tester.

Can I pass off my moissanite as a diamond?

It is not ethical or legal to intentionally misrepresent a moissanite as a diamond. However, some individuals may attempt to do so by using tactics such as describing the stone as a “lab-created diamond” or avoiding direct questions about the stone’s identity. It is important to disclose any information about a stone’s identity accurately and honestly.

What is the easiest way to test a diamond?

The easiest way to test a diamond is to use a diamond tester that is designed to detect the thermal conductivity of diamonds. These testers are simple to use and can quickly determine whether a stone is a genuine diamond or a simulant.

Takeaway

having a reliable diamond tester is an essential tool for anyone in the jewelry industry or those looking to purchase diamonds. With the wide range of diamond testers available in the market, it can be overwhelming to choose the best one.

However, we have compiled a list of the top diamond testers based on their features, accuracy, and ease of use. From the Presidium Duo Tester II’s comprehensive testing methods to the compact and affordable GemOro Ultratester 3+, there is a diamond tester that fits everyone’s needs and budget.

By choosing one of the diamond testers on our list, you can be assured of the accuracy and reliability of your diamond testing results.

Last Updated on January 30, 2024 by JewelryNStyle

Last update on 2024-06-06 / Affiliate links / Images from Amazon Product Advertising API

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