I dropped the sliders very low for rough diamonds in the diamonds and graphite mod but every ore patch is flooded with rough diamonds, which are supposed to be a rare alternative to making them via crafting and it is not possible to consume diamonds at a fast enough rate until you start launching rockets. I think I set the frequency slider as low as possible without disabling rough diamonds and this is still a problem.
It's bad enough to the point I've considered loading up the game without the mod then saving and reloading with the mod enabled to just delete all the rough diamond tiles that exist.