What her face really looks like. Or maybe that's what it looks like for NOW.
I don't think she has the third eye because of not fusing completely together but because it's the future vision eye and is unlike a regular seeing eye. But the rest of it makes a lot of sense!
Blue Diamond's Agony (Steven Universe) by HaruTakamori.deviantart.com on @DeviantArt
Steven universe Stevonnie Cotton candy garnet Alexsandrite Malachite
steven universe fan made fusions - Google Search
In Bloom - Crystal Gems Fusions
Blue Diamond | Steven Universe Fanart! by CamilaAnims.deviantart.com on @DeviantArt
A GIANT WOOMAN!! lol you so read this in Steven's voice while singing it didnt you? (The pin, not this comment)
stevenuniverse, crystalgems, peridot
Blue Diamond Margo-sama.deviantart.com