Amethyst

It's the "purple one", it's the "Purple Puma", it's Amethyst!  Seriously, Steven Universe is an awesome show you must watch! : D

More Crystal Gems:
Pearl
Garnet
Steven Universe
Rose Quartz
Ruby and Sapphire
Bismuth 
Peridot (Sans limb enhancers) 

Fusion Gems:
Opal
Sugilite
Alexandrite
Stevonnie
Garnet (Fusion)
Malachite
Rainbow Quartz 
Sardonyx 
Garnet (Origin)
Smoky Quartz  
Corrupted Jasper Fusion 

Homeworld Gems:
Lapis Lazuli
Peridot
Jasper
Blue Diamond 
Yellow Diamond
Ruby Squad 
Holly Blue Agate NEW!

OMGWTFBBQ?!:
Onion 

Done with Illustrator and Photoshop.
Amethyst and Steven Universe are copyright of Rebecca Sugar and Cartoon Network.