lab grown diamond

All About CVD Diamonds: The Future of Luxury Jewellery

Lab-grown diamonds are made from various methods, but do you know what is the finest method? It’s the CVD method. In this blog, we will take on a ride to understand everything about CVD diamonds. From the formation process to the future of CVD diamonds, we will cover everything here.

What is a CVD diamond?

The first basic question arises, what are CVD diamonds?  CVD is an abbreviation for Chemical Vapour Deposition, and it is the most generally used term for diamonds created in a laboratory using this procedure. This is different from another procedure, HPHT (High Pressure High Temperature) that has been used to produce lab-grown diamonds for last many years.

CVD diamonds are man-made diamonds that are identical to natural diamonds and are completely legitimate. Indeed, without specialized equipment, it is hard to distinguish between a CVD diamond and a naturally occurring diamond.

History of CVD Diamonds

When laboratory-grown diamonds were initially found in 1956, the HPHT method was utilized to create them. Since then, scientists and developers have been attempting to discover new techniques to produce diamonds. Only in the 1980s did the CVD technique for producing diamonds become fully established and achieved. W.G. Eversole, Derjaguin, and J.C. Angus were among the first to create CVD diamonds.

How are CVD Diamonds Made?

In the CVD process, a thin diamond seed crystal is placed inside a chamber filled with a carbon-rich gas, such as methane. The chamber is heated to high temperatures and set at low pressure. Under these conditions, the carbon atoms from the gas break apart and settle onto the seed crystal, layer by layer. Over time, this process builds a diamond structure that is completely identical to a natural diamond.

How fast do CVD diamonds grow?

CVD diamonds have an average growth rate of 0.1 to 10 micrometers per hour. This means a diamond of a few carats can take several weeks to grow. The setup of the CVD apparatus, the gas mixture utilized, the temperature, and the pressure conditions are all variables that can influence the exact growth rate. Technological developments in CVD diamond manufacturing may have an impact and accelerate these growth rates.

CVD vs HPHT diamonds

  • HPTP diamonds are grown at an extremely high pressure of  5-6 GigaPascals (GPa) and high temperature of around 1400-1600 degrees Celsius, whereas CVD diamonds are grown in less and maintained pressure and temperature at  1-4 GigaPascals (GPa) and 700-900 degrees Celsius respectively.
  • CVD diamonds take a few weeks to grow but HPTP diamonds take approx a month to grow the similar size.
  • Both CVD and HPHT Lab diamonds attained an excellent clarity grade, but the outcome is ultimately determined by the exact growth conditions and quality control.
  • The CVD method makes it easier to produce larger size of diamonds without any decided amount. Whereas, HPTP diamonds have a limit for producing diamonds at the same time.
  • HPTP Lab Diamonds is best for producing smaller diamonds with the best inclusions, and CVD diamonds are perfect for growing larger diamonds.

The Sparkling Benefits of Choosing CVD Diamonds

Do you know why CVD diamonds getting appreciation in the jewellery market? Let me tell you some of these benefits for choosing CVD diamonds:

1.Eco-Friendly and Ethical

CVD diamonds are grown in a controlled environment and eliminate every environmental-related process like traditional mining. They are eco-friendly and ethically sourced from high technological advancements.

2. Cost-Effective

CVD diamonds are 20-40% less expensive than natural diamonds and capture a wide market assessing luxury to eco-conscious and affordable customers.

3. Customization

CVD diamonds allow customers to customize their dreamy diamonds in their desired shape, size, and design without including any extra cost.

4. Quality Assurance

CVD diamonds are evaluated and certified by the same trusted organizations as mined diamonds, such as GIA and IGI. They go through strict quality checks to ensure their clarity, cut, color, and carat weight meet the highest standards.

How to Identify a CVD Diamond

CVD Diamond

It is impossible to characterize a CVD diamond from the naked eye because it appears optically similar to natural diamonds. These diamonds need high technology and expert diamond grader to identify the CVD-grown diamonds. So, whenever you purchase a diamond always ask your jeweller to provide the authentic certification from renowned issuing institutes like IGI or GIA.

Myths About CVD Diamonds: What You Need to Know

Let’s explode some myths about CVD diamonds roaming in the minds of diamond-loving consumers:

CVD Diamonds Are Fake

CVD diamonds contain similar optical, chemical, and physical properties to natural diamonds, the only difference is the process they are sourced from. So, CVD diamonds are not fake they are identical to natural diamonds.

CVD Diamonds Are Low In Quality

CVD diamonds often have fewer impurities and inclusions than mined diamonds which makes them durable and best in quality. So, don’t worry consumers, CVD diamonds are not low in quality.

CVD Diamonds Don’t Last Long

CVD diamonds are as durable as mined diamonds and are rated 10 on the Mohs Scale of Hardness. So, there is no chance they won’t last long with you. They stand as a timeless investment option for you.

CVD Diamonds Are Cheaper Because They’re Inferior?

No, CVD diamonds are cheaper because of the sustainable growing process not because of the inferior quality. The process is less expensive than natural mining which is why they are affordable in nature.

CVD Diamonds Aren’t Valuable?

CVD diamonds are as valuable as natural diamonds, especially for those who want to reduce their carbon footprint and want an ethically sourced diamond to be studded in their dreamy jewellery.

Purchasing a CVD diamond is the right choice for you?

If you are thinking of buying a CVD diamond but confused about the decision? Don’t worry we are here to help you out with this decision. Purchasing a bigger carat of a diamond is a good choice because it takes less time to grow and includes minor milkiness after the treatment. But if you need a small diamond, we suggest you to consider HPTP grown diamonds. They don’t have any inclusions and create the finest quality of diamonds.

For more doubts related to diamonds visit more blogs we have on our website or call our assisting team related to any confusions you are facing in purchasing a lab-grown diamond jewellery.

At Emori, we deliver a breathtaking collection of lab-grown diamond engagement rings for your soulmates, stunning diamond pendants for your loving mother, diamond mangalsutra for your special lady, and many more to engage every bond with sparkling and affordable luxury.