Okay I don’t know if anyone else has done this yet and if they have my bad, here we go.
Here we see Steven hurt in “Coach Steven” (1x20)
Steven was hit in the head with a rock, from Sugilite’s carelessness, resulting in a cut on his forehead. At this point in the show, Steven knows very little about his powers.
Now here in “Earthlings” (3x22) Steven is trying to heal Jasper’s corruption, but she refuses and just straight up claws Steven’s chest
But what is this?
No blood. Not even a mark of where Jasper clawed Steven. At this point in the show Steven has learned a lot about his powers and can even control some of them. And we know gems don’t bleed when they get hurt.
Steven is becoming less human as he learns how to use his gem powers.