I've been thinking

With Steven going on a self discovery journey many of the gems near little homeworld didn't know what was coming up next for them. Two of those gems were Lapis and Peridot, while Lapis wanted to make sure that the new gems living on little homeworld were prepared for life on Earth. Peridot had been dealing with serious mental issues, which would eventually lead to a disaster that only Lapis could fix.
Cover art by tetrabrikdepapel on tumbler
Warning-this story will have moments of extreme sadness and depression
But there will be a warning before any moments of those just in case.
There will also be minor cussing