Sterling silver, Included quartz.  This is a power cuff!  PLEASE WATCH THE VIDEO TO GET A REALLY GOOD IDEA OF WHAT THE CUFF LOOKS LIKE.  A chunky piece of clear quartz with black inclusions and very large facets (called Herkimer Diamond) and another piece of included quartz with rust color rutile running through it, sit on top of a wide sculptural cuff.  2-1/4" wide at the top, tapering to 1/2" at the opening.  It is a medium sized 6" cuff with a 1" opening, and can be squeezed gently to make in more snug if needed.   RETURNS ACCEPTED WITHIN 10 DAYS OF RECEIPT