These were created by my brother Mitsukake Groupie (AKA Milky Bear).   He decided that the order in which they appear is: Sapphire, Ruby, Emerald, Topaz, Lapis, Amythest, and Diamond.  Lapis is the leader of this group.  There are no Fan fictions written about them todate.  Dimond is the only one without a link becuase my brother hasn't finished a full page pic of her yet.
 
 

Ruby

Topaz

Diamond

Emerald

Saphire

Lapis

Amythist