Diamonds are Forever!
Unless you use them to sharpen your grinding wheels!!
Which is better? Natural or Synthetic?
Natural Diamonds are generally not ready for prime time as a gem, but do well when you put the grinding wheel on it. Synthetic diamonds are cool because they can be tailored to specific applications.
So you grinder hands out there? Which is it for you and why?
Maybe this article can help you decide.
https://www.thermofisher.com/blog/mining/industrial-diamonds-as-good-as-gemstones-or-better/