I may be late but I was watching "Keep beach city weird" and when Ronaldo threw the papers on the ground you see the things that Lapis did like when she took the Ocean and all that stuff then it shows a diamond afterwards on the one dollar bill. I think that may have been hinting that Lapis Lazuli Might be Blue Diamond. I swear I might be Either wrong or Late but I just noticed this and wanted to share something I thought. Plus I'm bored and I cant fall asleep because I took a nap earlier. So :/ leave your thoughts in the comments.

Then afterwards when everyone was leaving he yelled "They're here to hollow out the earth, Its part of the great Diamond authority. They will take on any form! You can read all about it on my blog!" Now think about what peridot said in "Friend Ship" she said "this planet has an experstion date and I'm not going to stick around to find out when!" Maybe that's another thing peridot was doing. ....I don't know maybe I'm really bored.