Labs use cutting-edge technology to replicate the natural diamond-making process. The end result is a chemically, physically and optically identical lab diamond
Carbon is subjected to high temperatures and high pressure in a controlled environment, resulting in a diamond.
Diamonds pulled from the earth are thought to have been formed 1 to 3 billion years ago. However, scientists believe that they were formed from carbon dioxide being exposed to extreme temperatures (over 1000° C) and extreme pressure (about 5000 MPa). These conditions are found approximately 145 kilometers below the Earth’s surface. Once formed, these diamonds were moved from the Earth’s core to its crust by volcanic explosions.
Unlike the billions of years it takes to create mined diamonds, lab-grown diamonds typically take less than a month to grow. White diamonds take the longest time to develop as it can take 2+ weeks to grow a 1-carat diamond. On the other hand, yellow and blue diamonds take 5-10 days. It is important that the growing process is not rushed or else the crystal will fracture.