Talk:Hit the Diamond/@comment-1784834-20151211023718

A guess as to what happens:

The two gems mentioned by Connie's voice actress arrive on Earth, and they're nasty xenophobes. They came to shatter the Crystal Gems, capture Steven, and rescue Peridot. Things go south for them, though, when Peridot fully defects to the Crystal Gems, thanking Steven for opening her eyes to a better life. But the two Homeworld Gems see her as a traitor, and poof her, before they are forced into retreat by the Crystal Gems.

Later, Peridot regenerates, now with stars on her outfit instead of a diamond, indicating that she's now a full CG. She still has much to learn about Earth, but she's willing to, and sets to work upgrading the entire house. The episode ends with the reveal that Peridot has an aptitude for over-engineering, having installed a very, very effective security system that menaces Steven and Connie, for which Peridot apologizes.