Lab Grown HPHT & CVD Diamond
This chart shows the different methods of diamond growth and an example of their rough form!
Diamonds grown with the CVD or HPHT method are all real diamonds! Both methods produce diamonds that are physically, optically, and chemically identical to natural diamonds although they may have unique characteristics before they are cut and polished as seen in the figure above. Both types are made of pure carbon and create the same hardness. To the naked eye, there are no clear differences between a CVD and HPHT diamond and the price for each option are very similar.
What are lab-grown diamonds?
A lab-grown diamond is a lab-grown diamond whose composition, physical, chemical and optical properties are the same as those of a natural diamond, so it cannot be distinguished by the naked eye, a magnifying glass or even a microscope. There are currently two mainstream cultivation methods: chemical vapor deposition (CVD) and high temperature and high pressure (HPHT).