I stumbled across the stone itself by accident, as is usually the  case with these things, and... well, seraphinite tends to look so much  like shiny etched feathers.  So I snatched it up and put it aside for a  while, finally starting to get the project going and--  There was a  chocobo and a convention and a move and a whole lot happening before I  picked it up again and somehow continued exactly where I left off.   ...Then I made a chainmaile chain for it too, because.  Well.  I just  did.  Reasons.  

I love how this silly little "I wonder if I could..." idea  turned out.  It was so ludicrous at the time, and yet.  It worked out  very well, allowing the light to bounce off of and through the stone  itself to really maximize the shiny.  And then I made chainmaile for  some reason, I don't know.  

(And if you happen to get a mild Sephiroth vibe from this... I won't tell if you won't.)