posted on Oct, 28 2012 @ 01:42 PM
I became interested in this and researched it awhile back.
The CVD (chemical vapor deposition) method is the most interesting.
Basically you take a microwave and run some quartz tubing into it. Attached to the tubing you have metered oxygen, hydrogen, and methane. You put a
tiny chip of real diamond into the tubing inside the microwave. The microwaves, hydrogen, and oxygen react to form a small plasma ball around the
diamond chip. As the methane goes into the plasma it is broke down to carbon and slowly layers more diamond onto the chip, growing it. My past
research showed that growing about one carat in 24 hours was the norm. You have to have control of the microwave power, the pressure, and the gas
flows to not end up with a poop brown diamond.
I ran across plans for a home made plasma reactor out of a house hold microwave long ago. I guess this process had to start some where. But in the
plans they had a dummy load. Something to absorb the unused microwave energy and also allow it to not spark if metal is in it. I'm not sure why that
These diamonds are the real thing, usually with less imperfections than the real thing. And can only be told apart by using an expensive spectral
analysis machine (which Debeers bought a lot of).
The precision metering valves for the gases are fairly expensive. But I sure would like to try it some day.
pictures of commercial reactors
Can't get the video to embed, short video
edit on 28-10-2012 by yellowsnow because: (no reason given)