Based on Early Italian Renaissance Artwork. 

Strand is made up of Amethyst beads.  The drop consists of a 15mm Amethyst cabochon and 4 6mm Moonstones in Silver settings on a Silver-plated Brass plaque, finished with 3 teardrops of Amethyst.

Silver-plated Toggle Clasp.  Strand is 17", and the drop is 2".