Yes, under extreme heat and extreme pressure.
a diamond that is created in a laboratory environment using advanced technology to mimic the natural diamond-growing process
No
The Laboratory was created in 1844.
A natural diamond is one that is mined from the earth. One that is grown in a laboratory would not be a natural diamond.
There is a company called diamond Nexus who sell pure carbon man made diamonds. They can even make a Laboratory diamond to your preference, from the colour, cut and size.
Daresbury Laboratory was created in 1962.
Desert Laboratory was created in 1903.
Noyes Laboratory was created in 1902.
Clarendon Laboratory was created in 1872.
The Laboratory Project was created in 2010.
Chaos Laboratory was created in 2006.
Lincoln Laboratory was created in 1951.