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Are lab grown diamonds real ?

Lab grown diamonds are visually, chemically and physically identical to mined diamonds. The only difference between lab grown diamonds and mined diamonds is the way they are formed. Mined diamonds are formed below the surface of the earth over millions of years, whereas lab grown diamonds are grown by scientists in a lab over a period of few weeks.


Yes! They are real

The chemical, physical and optical properties are similar to mined diamonds and exhibit the same fire, scintillation, and sparkle.

“[Manmade] diamonds are diamonds.”

Federal Trade Commission (USA), August 2018.

“[Lab created diamonds] are not fakes. They’re not cubic zirconia. They have all the same physical and chemical properties of a mined diamond.”

Stephen Morisseau, a spokesman for the Gemmological Institute of America (GIA).

"Mined diamonds are a gift of nature whereas man-made diamonds are a gift of human wisdom.”

Shanghai Diamond Exchange’s President Qiang Lin.

What is a Lab  Diamond?

Diamonds - a girl’s best friend, come in two different forms. Some are found from below the ground, and some above. Unlike Natural Diamonds, which usually take millions of years to form, from just a chunk of coal, are found from the earth’s surface. But CVD Diamonds are defined to be man-made diamonds, which are grown in labs, using a special process named ‘Chemical Vapour Deposition.’


But many people still feel that lab-grown diamonds are fake. Which in fact is just a myth. Lab-grown diamonds are exactly the same physically, visually, and chemically and they prove to be 100 % real, leaving no mark of difference between the naturally produced ones and the lab-grown diamonds. They serve the same, best of the quality, design, texture, durability, clarity, and opulence.

How are lab grown diamonds created?


CVD Diamonds, known as Lab-grown diamonds are made under the Chemical Vapour Deposition process, which begins with a diamond ‘ seed’, a small natural fragment that undergoes extreme pressure and temperature. It fills with gases that are heavy in carbon and heated at high temperatures. The intense pressure and heat give rise to plasma, which are layers that help build a beautiful gemstone. But selecting the strongest natural diamond is essential for the production of lab-grown one. 

As India is changing tracks and running over the wheels of technological development, CVD Diamonds prove to be the greatest creation. These lab-grown diamonds simply replicate as the natural ones, in fact, are more affordable! 

Comparison Between Lab-Grown, Mined Diamonds and Simulants

Characteristics same as earth-mined diamonds



Cut (proportions, symmetry, and polish) is a measure of how a diamond’s facets interact with light.



The color, higher the grade. Even the slightest hint can make a dramatic difference in value.



Clarity grades assess the number, size, relief, and position of inclusions and blemishes



Carat weight means larger diamonds of the same quality are worth more per carat.

The CVD Method

CVD stands for chemical vapor deposition

Lab grown diamond seeds are loaded into a CVD reactor. Then, a mix of gasses containing carbon is added at a very low pressure. Microwave energy is used to heat the gases and generate a plasma. When the temperatures climb over several thousand degrees, the gas molecules break apart and carbon atoms bond to the seeds, growing them one layer at a time

The HPHT Method

HPHT stands for high pressure high temperature

This method mimics the conditions under which diamonds naturally form. Large mechanical presses are used to apply extreme pressure and high temperature to carbon in the presence of a diamond seed. The seeds act as a template for a lattice of carbon to grow layer by layer over the course of a few days.

How long does it take to grow a diamond?

In nature, it takes millions of years for diamonds to form. In a lab, we can grow a one carat stone in about two weeks.

How do you make colored lab-grown diamonds?

One of the great advantages of lab-grown diamonds is that they can be made in an array of colors that are very rare when found in nature. This is achieved by making changes in the gas mix added to the CVD reactor combined with treatments to these stones applied at the end of the synthesis process. The process sounds simple, but it has taken our scientists thousands of hours to refine the process and create the perfect  shades of light pink and blue every time.


How are Lab Grown Diamonds Graded ?

Lab-grown diamonds can be graded in the same way as natural diamonds, by assessing the four C’s of diamond quality: Cut, Color, Carat, Clarity. The GIA and IGI both offer dedicated reports using the same grading process as natural diamonds, whilst also specifying their origin as lab-grown. At Nishal Gems we do not individually certify each stone as we believe it's unnecessary. We see one of the major benefits of lab-grown diamonds to be the ability to consistently create high quality stones, therefore we guarantee all our stones reach our quality standards without the added cost of a third party certification. You are of course welcome to have your Nishal Gems stone graded post-purchase for your own peace of mind.

Why choose Lab-grown diamonds?

In the 18th century the earliest source of the diamonds: India was depleted of it’s treasure due to over extraction of these diamonds. The extraction process of these diamonds leaves deep scars on Earth and also leads to the emission of Carbon dioxide into our environment and acids into our ground water sources.

These lab grown diamonds and are created by professionals in labs with zero effect on the environment.


​Shine brighter

Lab-grown diamonds are physically and optically identical to mined diamonds


Diamond mining is causing a tremendous toll on our environment


Lab-grown diamonds are very less in price than mined diamonds

Conflict Free

A lot of mined diamonds are sold in order to fund armed conflict


All of our lab-grown diamonds are certified by a universally trusted certificate house, IGI.


Explore the world of lab-grown diamonds with your trusted partner Nishal Gems

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