The semi-precious stones are really worth more than the diamonds which are a totally artificial market. They are also more beautiful imo and have 'personalities' ... diamonds are vanilla.
I couldn't have said it better, Doc. Plus we can make diamonds that are better than the ones nature produces, and diamond has far better uses than being stuck on a ring LINK
It's reckoned that diamond semiconductors could operate at 81Ghz. Imagine that in your PC!