system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5; How much diamond has not been uncovered yet? And how much will the price of diamond be when all of it is uncovered?
gpt
Diamonds aren't particularly rare.

Most diamonds are held by a cartel named DeBeers which only releases as many diamonds per year as they choose to, so as to ensure an artificial scarcity to keep prices up.  The rest of the price is in marketing.

Besides, it's now possible to have lab-created diamonds that are functionally identical to mined diamonds.