Let's see... The way I've heard is that after being met with a meteor for the sixth time, 6 moons were formed from the broken earth. All that was left was our beach. The things that existed before died off and were eaten by the things in the bottom of the ocean and over the years they'd crystalize and come to shore, and in rare cases they'd be... Well, us gems. Sentient. Then our master will take us and refine us and give us purpose.

[They tap lightly at their chin, frowning thoughtfully before looking sheepish] If Phosphophyllite was here, they might be able to tell you more. They were digging in about this a lot more than the rest of us.

All I know is that there's no life anymore except for us. As for organic life, there are some birds, jellyfish, and insects, but that's about it as far as I know!