Some links to work in diamond CVD
(Chemical Vapor Deposition)
P1 Diamond CVD has a
very nice
pictorial
description of diamond CVD and provides a variety of
commercial services.
Diamond CVD and molecular manufacturing
The Garrison Group
pursues computational modeling of diamond growth.
Bristol University's diamond
CVD page has an
excellent introduction to the subject.
An ab initio quantum chemistry analysis of a proposed
reaction for the site specific abstraction of hydrogen.