This piece tests as low grade silver. I don't know what the beads are they look like some type of mineral or stone and they are faceted and you can see the striations from where they have been cut, they are also a bit opaque. The whole thing is done in a wire silver design and I can find no marks. It measures 18 1/2" long and slips over the head. The central pendent measures 2 1/5" wide; 2 1/2" high and 2/5" deep. I have made no attempt to polish this piece. I believe this piece is middle eastern.