Talk:Friend Ship/@comment-26202330-20150718021803/@comment-508329-20150718133102

Also, Sardonyx has a swivel waist, Lapis Lazuli looked like a marionette or ball-jointed doll when she was regenerating, and Amethyst shapeshifted into Dogcopter.

Maybe Peridot's a regular Gem who deliberately chose to regenerate into a form that's more mechanical than usual.

(Or maybe she really is missing her limbs because of a cracked or flawed Gemstone and using prosthetics. Or maybe she's a cyborg by choice, deliberately shapeshifting or regenerating into a form that directly interfaces with her artificial limbs.)