Can A Jeweller Tell If A Diamond Is A Lab Created?

It’s natural for anyone interested in jewellery or diamonds to worry if their stones are genuine. Because of scientific progress, synthetic diamonds may now compete with natural stones in both popularity and price. Many values the real, one-of-a-kind qualities of an authentic diamond. What about a jeweller, though? 

Can they detect whether a diamond is synthetic? This article will discuss how a jeweller can tell the difference between a diamond that was mined from the ground and one that was grown in a laboratory. Come with me as I delve into the depths of diamond grading.

clear crystal on white surface

Can A Jeweller Tell If A Diamond Is A Lab Created?

Yes, a trained jeweller can usually tell if a diamond was made in a lab or not by using a combination of visual inspection, gemological testing, and special tools.

Lab-grown diamonds are made in a controlled environment in a lab, while natural diamonds are made deep in the earth over a long period they came from different places, and they have different traits that can be found with the right tools and knowledge.

One of the most common ways for a jeweller to tell the difference between a natural diamond and one made in a lab is to look at the diamond’s “inclusions” through a microscope.

Inclusions are natural flaws that can be found in a diamond, and lab-made diamonds tend to have fewer and less noticeable inclusions than natural diamonds. Some lab-made diamonds may also have a specific growth pattern or laser marking that shows where they came from.

The origin of a diamond can also be found with the help of gemological testing. For example, a jeweller can use a tool called a DiamondView to look at a diamond’s fluorescence, which can be different between natural and lab-made diamonds.

By looking at a diamond’s chemical makeup, special tools like the Fourier-transform infrared (FTIR) spectrometer and the Raman spectrometer can also help find out where it came from.

Differences Between Natural And Lab-Created Diamonds

Gemological testing and careful inspection can tell the difference between a natural diamond and a lab-created diamond, despite their superficial resemblance. Some of the most notable distinctions between mined diamonds and synthetic ones are as follows:


A diamond’s origin describes the conditions under which it was first created. It takes millions of years and a lot of heat and pressures down in the Earth’s mantle for a diamond to form naturally. These diamonds are generally unearthed in alluvial deposits or eroded kimberlite pipes from antiquity.

Lab-created diamonds, on the other hand, are made in a lab under controlled conditions that are a technological approximation of the mantle of the Earth’s interior, with its extreme pressure and temperature. High-pressure, high-temperature (HPHT) or chemical vapour deposition (CVD) techniques are commonly used in this process.

The HPHT technique uses high pressure and temperature to develop a diamond around a tiny diamond seed. By exposing a substrate to a carbon-containing gas combination, diamond crystals can form on it using the chemical vapour deposition (CVD) technique.

Lab-created diamonds can be made in a matter of weeks or months, depending on the size and quality of the diamond, whereas real diamonds are developed over millions of years by natural geological processes.


is a major factor in how much diamonds are worth and how much people want them. Natural diamonds are rare, and it takes millions of years for them to form deep in the earth’s mantle, where there is a lot of heat and pressure.

They are often found in old kimberlite pipes or alluvial deposits, and it is getting harder and harder to find new diamond mines. Because of this, the number of natural diamonds is limited, which helps explain why they are so expensive.

On the other hand, lab-created diamonds are made in a lab using modern technology. Even though they aren’t as rare as natural diamonds, the number of lab-made diamonds is limited by how many the labs that make them can make.

But because they are made on demand and don’t have the unpredictable changes in supply that natural diamonds do, they are usually cheaper than natural diamonds of the same quality.

Some natural diamonds are rare and more valuable than others in terms of how rare they are. For example, diamonds that are bigger, colourless, and free of flaws are thought to be rarer and more valuable than the smaller diamonds sold, coloured, or have flaws. Also, natural diamonds that come from a specific mine or region may be rarer and more valuable.


Inclusions are natural flaws that can change the clarity, transparency, and overall look of a diamond. They usually happen when the diamond is growing naturally deep in the earth’s mantle. They can be caused by several things, such as other minerals, gases, or cracks.

Most of the time, natural diamonds have more imperfections than diamonds made in a lab. This is because lab-grown diamonds are made in a controlled environment with fewer impurities, so they have fewer inclusions. Natural diamonds, on the other hand, can have crystals, feathers, and clouds inside of them, which can change how they look and how much they are worth.

The clarity grade of a natural diamond can also be affected by its inclusions. Clarity is one of the Four Cs that are used to judge a diamond’s quality. Most people think that diamonds with fewer inclusions are more valuable because they let more light pass through them, making them shine and sparkle more.

Lab-grown diamonds, on the other hand, are usually grown with fewer imperfections, which can make them more clear and more transparent. This is because the growing process is carefully controlled, and any impurities can be taken out during the manufacturing process.


The colour of a diamond refers to whether or not it has any colour in it. There are many different colours of natural diamonds, including white, yellow, pink, blue, and green, but white is the most common. The crystal lattice structure of a natural diamond and the trace elements it contains, such as nitrogen or boron, determine the colour of the diamond.

Lab-grown diamonds, on the other hand, are usually colourless, but different colours can be made by adding certain trace elements during the growth process.

The colour of a diamond can have a big effect on how much it is worth and how much people want it. The Gemological Institute of America (GIA) has made a colour grading system for white diamonds that goes from D (colourless) to Z (light yellow) (light yellow or brown). Diamonds in the range of D to F are considered “colourless” and are usually the most expensive. Diamonds in the range of G to J are considered “near colourless” and are still very valuable.

Growth Patterns

The way a diamond’s crystal lattice is built and arranged inside the diamond is called its “growth pattern.” These growth patterns can change how a diamond looks overall and may also tell us something about its history and where it came from.

During the diamond’s natural growth process deep in the earth’s mantle, it often grows in a way that is different from other diamonds. There are many different ways that these growth patterns can look, such as with irregular shapes, inclusions, or crystallographic features. Some people think that natural diamonds with unique growth patterns or inclusions are more valuable and rare.

Lab-grown diamonds, on the other hand, are grown in a controlled environment and tend to grow more consistently than natural diamonds. This is because the conditions in which the diamonds grow can be controlled very precisely. This makes it possible to grow diamonds with fewer imperfections and a more uniform structure inside.

The way a diamond grew can also tell us about its history and where it came from. For instance, diamonds from certain mines or areas may have unique growth patterns or inclusions that can be used to figure out where they came from.


Both natural diamonds and diamonds made in a lab are very strong and can take a lot of wear and tear. This is because diamonds are the hardest thing that people have ever found. They get a perfect 10 on the Mohs scale of hardness.

But a diamond’s durability can also depend on how well it’s cut and how it’s set. If the diamond isn’t cut well or if the setting doesn’t protect it well enough, it is more likely to get damaged or break.

There isn’t a big difference between natural and lab-made diamonds in terms of how long they last. Both kinds of diamonds are made of the same material and have the same physical properties, like how hard they are and how well they don’t scratch or break.


Both natural diamonds and diamonds made in a lab have their unique qualities and benefits. Natural diamonds are hard to find and have been around for a long time, which makes them more valuable and attractive.

They can also have unique ways of growing and things in them that make them one-of-a-kind. On the other hand, diamonds made in a lab are cheaper, more ethical, and last longer. They are also more uniform in colour, clarity, and structure on the inside, which can be appealing to some buyers.

When deciding between natural diamonds and diamonds made in a lab, it comes down to personal preference and what’s most important to you. For some buyers, things like rarity, history, symbolism, and ethical considerations may be more important, while for others, price, consistency, and durability may be more important.

Looking for the perfect lab diamond ring for your big day? Temple & Grace is a good choice for you!

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