Experience Tumblr like never before
Meet Mystic Chaos Emerald Diamond Quartz (not a part of my oc au I don't think but. hoo boy I love them. I based them off of a dnd oc I'm never gonna use and actually haven't designed yet).
A long time ago, Pink Diamond was the youngest Diamond, trying desperately to show the others she was ready for a colony. She took a desperate, inadvisable step.
She created Mystic "Chaos Emerald" Diamond "Quartz" (the names in quotations added by Mystic themselves later, a desperate bid to show that she was no longer the youngest Diamond and thus deserved a colony. And, to show she was powerful and responsible enough to handle one as well.
None of this went according to plan. Pink got into massive trouble for crafting a new diamond without permission (something that it was thought only White could do until then). And, there was now a new diamond that none of the others were ready for or sure what to do with.
It didn't help that Mystic was.... not very willing to follow the rules. They are, as the name they chose implies, very chaotic. They are very whim-based, and don't really do things they should. Rather, they enjoy having fun and seeing the results of the chaos they caused to happen.
The only reason that the diamonds did not punish this diamond as they did Pink is well.... Mystic is powerful. They have a future vision beyond that of a Sapphire, and their aura seemed to be a mix of Blue Diamond's sadness aura and a new anxiety/fear-inducing aura that stopped even the most powerful gems in their tracks.
So, the diamonds generally leave Mystic to their own devices. Even Pink doesn't visit them for the reminder they pose of her poor attempt to get a colony. So, Mystic plays on their own, occasionally visiting court gatherings of the other diamonds for fun and to annoy the other diamonds. Mystic doesn't really have their own court, having not really thought of making her own gems yet. So, no one's sure what type of gems they can make.
Mystic is a head taller than Pink Diamond, and uses they/them pronouns majorly but is fine if a gem slips up and uses she/her pronouns.