Sterling silver,  Prong set, this pretty stone combines soft greens, beige and redish browns.  A new discovery at the gem shows this year!   2-1/4" long from the posts.   PLEASE LOOK AT THE VIDEO, THE PHOTO OF THEM IN MY HAND AND THE HEAD SHOT, THIS WILL GIVE YOU THE BEST IDEA OF COLOR, AS WELL AS THE SCALE.  Exchanges only please.