Board Thread:General Discussion/@comment-25539649-20150620190612/@comment-26446602-20150706054329

I doubt she'll be a fusion, unless it involves Jasper(she is striped, and when fused with Lapis, became Malachite - a striped stone as well). Garnet says "so this is what Homeworld thinks of fusion" when she sees the cluster(who, like Centipeetle, I believe has nothing to do with Sardonyx directly. Cluster might, in some way, but do recall right now it's safely bubbled, so I feel like any meaning it has would come from a different cluster), so it seems like it's something that Crystal Gems are more comfortable with(as in, it's not just Jasper's pride, the whole planet feels the way she does).

Kindly remember that Peridot was unaware of gem life on Earth, thought they had been wiped out, and had sent a Red Eye towards earth. As in, Homeworld's only interest was Peridot looking into the Cluster. So take that for what you will, when you consider it being Yellow Diamond. If they cared much about earth at all, and it wasn't just a small part of Homeworld that cared enough about using earth who went to war, we need to consider that Rose Quartz became Steven EXTREMELY recently, so either they assume that ALL the crystal gems are gone, or that Rose is still there and active(the way Jasper did).

The arrays in from the Mirror and the escape pod both seem compelling, possibly relevent.

To wrap up, I don't think it has anything to do with curing corrupt gems, unfortunately. It would be difficult for it to be another Crystal Gem any other way. The cluster may be related, but only in that any gem interactions will likely involve Peridot who is involved with the cluster. I doubt it's a fusion unless it's involving Jasper, because the stones match well - gems don't fuse as characters the same way gems fuse in real life; in the same thought, it wouldn't be made of sard and onyx, because that just isn't how they do things.