Scientists have refined two processes that enable them to grow diamonds
everything you need to know about the lab grown diamonds creation process
The laboratories essentially recreate the conditions in nature
The laboratories essentially recreate the conditions in nature that result in carbon crystallizing into diamond. As the processes mimic natural conditions there are still variations in colour and clarity of grown diamonds. Not all lab grown diamonds are colourless and flawless. This means, just like in nature, no two lab diamonds are identical.
High Temperature or Chemical Vapor Deposition?
Scientists have refined two processes that enable them to grow diamonds. The first is High Pressure-High Temperature (HPHT) and the second is called Chemical Vapor Deposition (CVD). Each process is best suited for variations of colour, sizes and shapes of diamonds. Here is a brief explanation of both processes.
High pressure, High Temperature (HPHT)
This method replicates the conditions under which diamonds naturally form. Large mechanical presses 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.
Chemical Vapour Deposition (CVD)
Diamond plates are loaded into a CVD reactor. A hydrocarbon gas is injected into the vacuum chamber 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.
as natural diamonds
Lab diamonds have the same physical and optical properties as natural diamonds meaning you will still see that imitable sparkle and brilliance without any negative environmental impact.