A natural diamond is made from carbon and is the
hardest natural known substance on earth.
CVD stands for Chemical Vapour Deposition, and is the
commonly used name for diamonds grown in a
laboratory
via a process of chemical vapour deposition.
HPHT stands for high pressure, high
temperature and is one of the primary methods
- used to
grow diamonds in a lab.
Lab grown diamonds from a chemical perspective exactly the
same as natural diamonds. Lab-grown
diamonds are man-made
stones created in a lab.
Diamonds in the normal color range are colorless through light
yellow and are described using the
industry's D-to-Z color-grading
scale. Fancy color diamonds, on the other hand, are yellow and
brown diamonds that exhibit color beyond the Z range, or diamonds
that exhibit any other color
face-up.