Bead Necklace 20" Large Black Middle Bead with 4 Silver Side beads Corded

This is a cord necklace with a LARGE black Bead in the middle with 2 silver beads on each side. The black cord closes with a lobster claw clasp. The necklace measures approx 20" when open and laid flat. Source unknown, metal unknown. I bought it in a store in London and brought it back to Kentucky where I will mail it to you from there.