I have a question that’s been bugging me for a long time.
I know (or at least I think I know) that diamond is basically carbon that’s been compressed over a long (very long) period of time.
My question is: is there a way to speed up this process (e.g. by creating immense heat or some other thing - I’m just saying something here)? In other words, could you make diamonds in a factory? If so, would it be cost-effective (i.e. would the diamond not cost more to make than it would be worth)? This might just be a dumb question: IANAS, and I don’t know the conditions it takes to make a diamond, but still: could it be done?