Diamond Tester


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Is Discontinued By Manufacturer:

Product Dimensions:



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Is Discontinued By Manufacturer:



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Product Dimensions: 1.2 x 1 x 4 inches

Is Discontinued By Manufacturer: No

Item Weight: 5.3 ounces

Manufacturer: Hqdz


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Is Discontinued By Manufacturer: No

Item Weight: 3.52 ounces

Manufacturer: StillCool


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Item Weight: 5.3 ounces

Manufacturer: WECHIC

Batteries Required: Yes


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Product Dimensions: 8.66 x 2.36 x 1.38 inches

Is Discontinued By Manufacturer: No

Item Weight: 4.2 ounces

Manufacturer: HMKIS


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Product Dimensions: 7.24 x 2.2 x 1.3 inches

Item Weight: 2.89 ounces

Manufacturer: Lotustech


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Item Weight: 4.8 ounces

Manufacturer: HEYMOUS ONLINE

Buyer's Guide: Diamond Tester

How to Choose the Best Diamond Tester for You

Diamonds are one of the most popular stones for engagement rings. In addition to being a symbol of love, diamonds have a lot to offer. They’re beautiful and durable, very affordable, and come in many different shapes and colors. The only downside is that not all diamonds are created equal – some are more valuable than others. It can be difficult to know if you’ve found a diamond worth your time and money without a diamond tester. Read on to learn how to find the perfect diamond tester for you!

What is a diamond tester?

A diamond tester is an instrument used to evaluate and grade the quality of a diamond. They come in all shapes and sizes and test for different things. The most popular devices are those that check for flaws and measure the clarity, color, and cut.

The most popular diamond testers are those that measure the clarity, color, and cut. These diamond testers can help you decide if a diamond is worth buying. They also allow you to compare the quality of diamonds.

There are multiple ways to find the best diamond tester for you. You can read reviews online or ask your jeweler what they prefer to use. The best way to find the right diamond tester for you is to learn about what it can do and how well it does it before you buy one.

There’s no point in paying for an amazing tool if it doesn’t work!

The Importance of a Good Diamond Tester

The diamond tester will help you determine the quality and authenticity of the diamond. There are a number of different ways to test a diamond, including the 4C’s, light refraction, and acid testing.

The 4C’s are a simple way to test a diamond for its purity. Diamond testers will use the four C’s to determine the clarity, cut, carat weight, and color of the diamond.

The light refraction diamond testers will use a light and magnifying glass to see if the diamonds have any imperfections or flaws. Acid testing will take a small amount of acid and place it against the diamond. If it does not react, then there is no flaw.

Some diamonds may be worth more than others, depending on their cut and clarity. However, it is important that you find a diamond tester that fits your needs. You may need a diamond tester that is more precise than others, such as one that has a magnifying glass to see small cracks or imperfections.

The Different Types of Diamond Tester

An optical tester is an instrument that can be used to determine the type of diamond. There are many different types of optical testers, but the two most popular are the refractometer and the dichroscope.

The refractometer is a handheld device that you use by shining a light through the diamond. The light shines off the stone and is collected by a lens on the other side. Now, all you have to do is look at the number of lines on your screen, which will tell you how far away the diamond is from being colorless.

The dichroscope is similar to the refractometer, but it detects the color of the diamond rather than just how far away it is from being colorless. They’re both easy to use and take only a few minutes to figure out your diamond’s grade.


For those who want to go old school, there are electric testers. These testers often look like small pens and are powered by either batteries or by plugging them into power outlets. There are two different types of electric testers:


Some diamonds are treated with a process called heat treatment, which makes them less desirable. These diamonds are not "naturally" formed, so it’s difficult to tell if they are worth purchasing.

The best way to find out if your diamond is untreated is to use a diamond tester. Diamond testers detect the presence of heat treatment in your diamond by measuring the thermal conductivity of the stone. Diamond testers have a tip that you place into the diamond in order to check for heat treatment. If you can’t find a diamond tester where you are, you can order one online.

When you receive your diamond tester, make sure to read the instructions carefully. Then, simply place your diamond inside the device, wait for about twenty seconds, and insert the tip into the diamond again. The device will tell you whether or not your stone is heated.

Diamond Tester Specifications and Factors to Consider Before Purchasing a Diamond Tester

Diamond testers are an invaluable tool for examining diamonds. It’s important to note that every diamond tester has different features that make it more or less ideal for your needs.

The best way to find the right diamond tester is to know what you’re looking for. Before you buy, consider the following factors:


There are many brands on the market today that offer diamond testers. You may not know which one to choose. You could try reading reviews or doing some research to see which one is best for you.

You should also think about what brand would represent your brand well. If you’re an upscale jewelry store, you may want to invest in a more expensive diamond tester that looks high-quality and matches your brand image. If you’re an online retailer, you may want to invest in a less expensive diamond tester that matches the price of your products. It’s all about finding the right diamond tester for your business!

Power Source

The first thing you need to know is if you want a battery-powered or an AC-powered diamond tester. The latter is better for settings without electricity.

The next important thing to consider is the size of the diamond you want to test. If you’re looking for a small one, you’ll need a smaller tester. The best diamond testers are usually made to test diamonds that are 1 carat or larger.

If you’re looking for a diamond tester, make sure it’s rated. The ratings are usually given in points (I, II, III). The higher the points, the better the diamond tester is. It’s also important to make sure it can test diamonds in colorless, near colorless, and faint colors.


The first thing you want to look for in a diamond tester is accuracy. You want to make sure the tester is able to accurately read the diamond's grade. Along with accuracy, you want to make sure the tester can read the cut of the diamond.

You should also make sure the tester is able to test for color, clarity, and fluorescence. You can find diamond testers that test for these factors with a single machine.

Along with accuracy, you want to make sure the tester is easy to use. You don’t want a complicated machine with a bunch of confusing settings. In order to find the right diamond tester for you, you need to be able to read it and use it quickly!


There are many factors to consider when choosing a diamond tester. The most important are the price, the ease of use, and the accuracy.

Diamond testers can range in price, but the average price is about $100. Keep in mind that cheaper isn’t always better. You want to make sure that your diamond tester is easy to use and accurate.

The most expensive diamond testers are usually more accurate than the cheapest. This is because more expensive models can measure stones more accurately. However, they may not be the best choice if you’re new to diamond shopping.

If you’re on a budget, you might want to consider a less expensive piece of equipment. That way, you’ll still be able to get an accurate reading without spending too much.

Tips For Choosing A Good Diamond Tester

Diamond testers are an essential tool for any jeweler. They are used to evaluate the quality of diamonds by checking for clarity, color, fluorescence, and fracture. This helps determine whether or not a diamond is worth the price.

There are many different types of diamond testers on the market today. Depending on your needs, you may want to consider using a handheld or machine-driven tester. Consider what features are important to you and what price you’re willing to pay.

Some of the most popular types of diamond testers are loupe testers, dispersive testers, and diamond tester machines.

Loupe testers are useful for evaluating the quality of loose diamonds. They generally have a magnification power of 10x to 30x.

Dispersive testers are used to evaluate the quality of sets before they’re assembled. They have a magnification power of around 2x to 4x.

Diamond tester machines are used to evaluate the quality of loose diamonds, sets, and jewelry pieces after they’ve been assembled. They typically have a power of between 10x and 20x.

Frequently Asked Questions about Diamond Tester

Can diamond testers be wrong?

Yes. Diamond testers can be wrong. And it’s important to know how to tell the difference between a bad tester and a good one.

There are a variety of different diamond testers on the market, but not all of them are created equal. There are three different types of testers: loupe testers, electronic testers, and thermal testers. Loupe testers are basically a magnifying glass with a wide enough lens to see a diamond’s entire surface. Electronic testers use cameras to take high-resolution photos of diamonds from different angles. Thermal testers use lasers to evaluate the clarity and cut grade of a diamond.

Can a diamond tester test other stones?

Yes. A diamond tester can test other stones as well. Diamond testers will test a variety of gemstones, from sapphires to pearls. It’s a good idea to have a diamond tester on hand so you can easily evaluate the quality of any gemstone you’re considering.

Additionally, a diamond tester can tell you more about a stone that you might not know about. For example, a diamond tester will tell you a diamond’s color, clarity, and cut. It also can tell you if a stone has been treated with any sort of enhancement, like a laser treatment.

It can be helpful to have a diamond tester on hand so you can easily evaluate the quality of any gemstone you’re considering. When you know more about the quality of a stone, it’ll make it easier to make an informed decision about whether it's worth your time and money.

What kinds of diamonds pass the diamond tester?

If you’re searching for a diamond tester, you need to know what kind of diamonds it can test. The 4Cs are the four factors that determine the quality of a diamond. These are color, clarity, cut, and carat.

A tester should be able to test for all 4Cs. The tester should also be able to test for flaws in the diamond, like cracks or chips.

So, what kind of diamonds can’t be tested? If your diamond is very small, the tester might not be able to test it. Some other stones, like sapphires or opals, also won’t be able to be tested. So make sure you know what you’re buying before committing to a purchase.

Can fake diamonds pass the diamond tester?

A diamond tester is a device that checks a diamond’s worth and quality. It’s a way to make sure you’re getting the best stone for your money.

A diamond has a four-cornered shape and is made of different types of minerals. A diamond tester will send a small electrical current through the diamond to check if the stone is real or not.

Some have the opinion that a fake diamond will pass a diamond tester, but that’s not always true. A fake diamond will have a different chemical composition than a genuine one, but a diamond tester will show that it is not a real diamond.

An inexperienced customer may not know the difference, but an expert with a diamond tester will be able to tell right away.

In this post, we’ll cover how to find the best diamond tester for your needs as well as the best ways to test diamonds so you never get duped again.

What battery does a diamond tester take?

A diamond tester is a handheld device that uses light sensors to analyze diamonds. There are many types of diamond testers, which can differ depending on the desired outcome. To help you find the right tester, keep reading to learn more about the different types of testers.

A fluorescence tester is used to identify diamonds with fluorescence. Unlike other types of testers, fluorescent testers use UV light, which reacts with the fluorescing chemicals in the diamond. A diamond tester equipped with an ultraviolet light is used to determine whether a diamond has an inclusion beneath the surface.This type of tester is used to identify imperfections like cracks or chips. An infrared tester is used for grading, or measuring the quality of a diamond. This type of tester uses infrared light, which penetrates deep into the stone, to show you its quality.

To find the right tester for you, consider your needs and budget. For example, if you’re looking for a tester that will only be used for grading diamonds, an infrared tester would be perfect. If you’re looking for a tester that will be used to identify any imperfections in a diamond, an ultraviolet tester would be best.


When you invest in a diamond, you don’t want to make a mistake. You want to make sure that what you’re buying is valuable and beautiful. The only way to do this is by finding a diamond that has been accurately evaluated.

A diamond tester will help you determine the average price of a diamond by the carat weight. More importantly, it will help you determine if a diamond is porous or not. A porous diamond is less valuable than one that’s not porous.

This is an important detail for any buyer, but it’s especially important for people who are purchasing diamonds for engagement rings. If you were to buy a porous diamond without knowing about its porosity, then it could be easily damaged in the long run.

A diamond tester will provide you with the information you need to make an educated purchase. And when it’s time to sell your diamonds, the price will be higher if they’ve passed the test.

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