My crystal gem friends

I drew my friends as the crystal gems based on their birthstones. 

Terra and Serenity are Garnet, however, they are the twin garnets based off the theory that Garnet is actually a fusion.
Evidence: 

So Terra is the blue triangular garnet, and Serenity is the pink garnet.
There is a type of garnet that can be blue, so thats why I'm think garnet is made up of twin garnets, and it was was easy to loose herself once she fused together. 
I based Serenity off the old garnet design from the pilot episode of Steven's Universe. 

Jessica is also a garnet, but she strikes me way more as Amethyst, so I made her the fusion : Sugillite. 

Vanessa is a fusion, Alexandrite. 

And I am Peridot. 

I changed up everyone's outfits a bit to match what their usual fashion would be. 
Just for a fun~