Sterling silver, 22K gold, beautiful, natural surface chunk of Aqua Marine along with a faceted Phrenite.   PLEASE PLAY THE MOVIE, IT WILL GIVE YOU A BETTER IDEA OF THE RING.  THIS IS ADJUSTABLE (see photo of the underside) As is, the ring is size 7-1/2, and it can be sized up one size.  RETURNS ACCEPTED WITHING 14 DAYS OF RECEIPT.