Here is an overview of all the currently available standard colorways:
Chryselephantine: matte bright ivory with a golden vein
Goldvein: sparkly black with a golden vein
Bloodline: rich deep red with a white base
Deep Sea: rich deep blue with a white base
Gengar: very dark and mysterious sparkly purple with a white base
(looks very dark in photos, but is more vivid in person)
Haunter: bright purple with a white base
Gengar/Haunter Mix: medium dark purple with a white base
Lagoon: blue/turquoise with a white base
Dove: matte opaque off-white
Mint: matte opaque mint green
70's Moss Green: moss green with a bright ivory base
Vintage Blue: A swirl of blue, bronze, white and translucent resin
Vintage Pink: A swirl of pink, bronze, white and translucent resin
Werther's: butterscotch
Werther's/Ivory: butterscotch with a bright ivory base
Orca: opaque black with a white base
Raven: opaque black
I am open for discussing slight variations of those standard options. Feel free to contact me, but please do not expect me to accomodate every wish customization.