How are lab grown Diamonds made?
Lab-grown diamonds are created using advanced technological processes that replicate the
conditions under which diamonds form in the earth. There are two main methods used to
create lab-grown diamonds: high-pressure high-temperature (HPHT) and chemical vapour
deposition (CVD).
In the HPHT process, a small diamond seed is placed in a container along with a carbon-rich
material such as graphite. The container is then placed in a high-pressure, high-temperature
press that recreates the conditions that exist deep within the earth, where diamonds
naturally form. The intense pressure and heat cause the carbon atoms in the graphite to
rearrange themselves and bond together, forming a new diamond crystal that grows around
the seed.
In the CVD process, a substrate is placed in a chamber and heated to a high temperature. A
mixture of gases, including methane and hydrogen, is then introduced into the chamber.
The heat breaks down the methane molecules, releasing carbon atoms that then bond
together and form a diamond film on the substrate.
Both methods can produce high-quality diamonds that are chemically, physically, and
optically identical to natural diamonds. Lab-grown diamonds are also environmentally
friendly, as they do not require mining, which can have a negative impact on the
environment