The Original era (Drawkill Dragon)

Foreward!
This series takes place in a post Change Your Mind timeline, in the Era 0 AU.

Basically, White wasn't the first Diamond. There was one before her-- Black Diamond.

Buuut Black was kinda crazy and White had to shatter her to keep her from murdering Homeworld. And then Black's gems took it the wrong way and rebelled before running off to who-knows-where. And everyone kinda forgot about that because White's court at the time was like, 30 gems.

Series Summary
After the events of Change Your Mind, Steven is visiting Homeworld to see the Diamonds and their progress fixing their society. But when the visit goes haywire and Steven finds himself in a secret underground temple, he finds that this era should probably be called Era 4.

Because everyone forgot to mention the original Era.