In that I am also a jewelry artist, I have designed and made a piece of jewelry representing lupus awareness.  The Butterfly pendant is made with sterling silver backplate, awareness ribbon of twisted SS wire, 2 teardrop shaped amethyst (purple is the designated color for lupus ribbons) and 2 accent stones. I believe they are chacedony, but am not sure.  The seller didn't label them.  But, here is the finished piece.  I am pleased with it.