9mm deep purple amethyst cabachon (the roundness of the stone), sits in a sterling silver prong setting. This will definately add a pop of color to your hand. Very simple and classic. I can send you pictures of "your" stone for your approval!
 
This can be made to any size, just let me know! Also, I have this stone in oval if you prefer.
 
(Free shipping as always, within the US, and packaged nicely with a low environmental impact.)