Hand stamping detail in the sterling silver frame add interest & surround this incredible stone. I think the photos of this stone speak for themselves. This stone is fantastic! Super interesting and unique stone. Appropriate for the Super Seven. 
Size 8 3/4
Super Seven is extremely rare. 
It is mined in one small area in Brazil. Sometimes that one mine is flooded and can become underwater. 
It is a makeup of :
1.) amethyst
2.) geothite
3.)cacoxenite
4.)lepidocrocite
5.)rutile
6.)Smokey quartz
7.)quartz
It is said to stimulate all the chakras at once.