Lab-Grown Diamonds

Soham Ghosh International offers an exceptional range of lab-grown diamonds. We deal in loose diamonds, therefore, our diamonds do not come preset in any form of jewellery, hence, you can embed them in your customised jewellery. Our business model is tailored to suit our customers’ requirements. We cater to individuals and offer diamonds on a retail basis, at the same time, we cater to businesses and offer diamonds on a wholesale basis. We offer a wide range of loose diamonds, starting from 0.05 carat upto 20 carat in size, in more than 9 unique shapes. Our lab-grown diamonds above 0.30 carat are certified. If you happen to choose diamonds under 0.30 carat, they will be non-certified, however, we can get them certified if you wish so, from an internationally recognised gemological laboratory. This service is complimentary.

Lab-grown diamonds are similar to its natural counterpart, possesses essentially the same chemical, physical and optical properties. On the Mohs scale, both natural and lab-grown diamonds score a perfect 10 on the hardness parameter. Lab-grown diamonds are produced under the same temperature, pressure, and conditions as mined diamonds, giving them the same chemical properties and carbon atom structure. As a result, fire, hardness, sparkle, clarity, and longevity — lab-grown diamonds are identical to natural diamonds from every corner. 

Union Carbide produced the first Chemical Vapour Deposition (CVD) diamonds in 1952. Going forward, General Electric (GE) researchers produced the first gem-quality lab-grown diamonds in the 1970s, however, it was not until the mid-2010s that lab-grown diamonds formally entered the global gem and jewellery market commercially after decades of research.

Birth of a Diamond

Chemical Vapour Deposition (CVD) system begins with a diamond “seed.” A diamond seed is a small natural diamond fragment that can undergo both extreme temperature and pressure conditions. Therefore, selecting the strongest and highest grade (in colour and clarity) natural diamond bit is crucial for lab-grown diamond creation. During the CVD process, the vacuum chamber in which the diamond “seed” is placed fills with gases that are heavy in carbon and is then heated to 1400-1500 degrees. The intense heat then turns the gases into “plasma.” The plasma is what helps “build” the layers of the diamonds, making them into the lovely gemstones that we love so much. This method is more economical because it works at moderate temperatures and low pressure, which generally requires smaller and comparatively less expensive equipment.

Creating diamonds by this method typically requires around 4-6 weeks for most sizes.

Clearing the Air: Lab-Grown vs Natural Diamond

There is no visible difference between the two. Even a professional will require specialized and advanced equipment to distinguish between the two. With magnification, a professional should be able to make out small contrasts in the inclusions of natural and lab-grown diamonds. Natural diamonds are created by nature, as a result of intense heat and pressure, formed over the course of billions of years. Lab-grown diamonds are created in a laboratory under controlled conditions supervised by professionals, often produced in just a matter of few weeks. There is a tiny chemical difference between the two, as natural diamonds often contain a very small amount of nitrogen, while lab-grown diamonds do not.

Price is an aspect where there is a marked difference between the two. Lab-grown diamonds are more pocket friendly than natural diamonds. The reason is supply. Natural diamonds are limited in supply and are, therefore, rare, due to the billions of years it takes to create a diamond. On the other hand, lab-grown diamonds, are abundant in supply, which drives prices lower as supply goes up. Future value is another parameter that puts natural and lab-grown diamonds on contradicting platforms. A natural diamond due to its rarity and scarcity, has a substantial future value, on the other hand, a lab-grown, being abundant in supply, has almost negligible future value.

Our Certifications

Our lab-grown diamonds (0.30 carat and upwards) have either been certified by the Gemological Institute of America (GIA) or the International Gemological Institute (IGI). If you choose diamonds under 0.30 carat and wish to get them certified, we will get them certified from either of the abovementioned gemological laboratories. This service is complimentary, you will not have to bear any additional charges for the same.

diamond exporters India
diamond exporters


Please note, the diamond authenticity certificate will be sent along with your courier.

Ethical Sourcing

The origin of natural diamonds has perpetually been a topic of debate, with some agreeing that diamond mining is environmentally harmful and unethical. Even though, Soham Ghosh International sources its natural diamonds ethically, we cannot alter an individual’s perceptions regarding mined diamonds, therefore, for them, lab-grown diamonds are a guilt-free purchase, as they are created under controlled conditions inside laboratories without any form of association with the perceived or in some cases, genuine drawbacks of mined diamonds.

Diamond mining removes the top layer of soil with each mining session, causing deforestation, flora displacement, fauna uprooting and air and water pollution. However, environmental concerns are not an issue with lab-grown diamonds, as they do not negatively impact the ecosystem and seamlessly recycle laboratory-produced waste. They also do not contain any impurities.

The availability of natural substances, such as minerals, natural gas, oil, coal and stones is scarce on Earth. Mining increases the rate of non-renewable resource depletion. Diamond mining requires excavating and digging up land to search for diamonds which affects the availability of natural stones.

Even though diamond laboratories also process natural resources to produce diamonds, the materials used during CVD process are more available than those used in diamond mining. Therefore, laboratory-produced diamonds are more sustainable than mined diamonds.

Should you buy a Natural or a Lab-Grown Diamond??

Well, truth be told, there is no right or wrong answer to this. If you consider diamonds as a luxury purchase, then you could choose between a natural and a lab-grown diamond by considering your budget. However, if you consider diamonds as an investment and are seeking a lucrative future value, then please consider a natural diamond. Whatever your choice might be, we offer both natural and lab-grown diamonds in your choice of cut, clarity, colour, carat weight and shape. In our view, natural and lab-grown diamonds are two sides of the same coin. Both have independent markets and a dedicated client base. We feel both categories will comfortably co-exist.


Our Range

  • VVS1 to SI3 Clarity
  • D to J Colour
  • 0.05 to 20 Carat
  • 9+ unique shapes

Please contact us for lab-grown diamonds