Discover the Facts Behind CVD vs HPHT

Lab diamonds are created using the same process that happens naturally in the Earth, all within a controlled environment that avoids any harmful impact.

There are two main methods used today to create lab grown diamonds, HPHT and CVD. HPHT diamonds are made in a closed chamber under extreme conditions of high pressure and high temperature. A tiny diamond seed is placed into a piece of pure carbon, which is then put into the chamber. It’s heated to around 1500 degrees Celsius while about 1.5 million pounds of pressure per square inch is applied. The carbon melts at this heat and forms around the seed, slowly growing into a rough diamond crystal over 4 to 6 weeks.

There are two different methods that are used today to create a lab grown diamond, HPHT and CVD. HPHT diamonds are created in a closed chamber using extreme levels of "high pressure and high temperature". A tiny diamond "seed" is implanted into a piece of pure carbon, which is then placed in a closed chamber and exposed to a temperature of 1500° Celsius, while approximately 1.5 million pounds of pressure per square inch is applied. The carbon melts at that level of heat which then forms around the seed, growing and transforming into a diamond rough crystal over 4-6 weeks.

Lab diamonds form the same way as natural ones, only in a safe, controlled space that’s kind to the planet. And the best part? New tech is on the way that uses 100 percent clean energy, making them even greener.