Board Thread:General Discussion/@comment-4224349-20150212230234/@comment-26062541-20150216000229

Marhawkman wrote: And how Amethyst's gem got cracked when she accidentally belly flopped on a rock... Yes but considering how high up the mountain was that was a LOT of force directed at the gem, and even then it was just cracked not broken! So we can assume that while not invulnerable, their gems are more durable than their human constructs.