Based on Early Italian Renaissance Artwork. 

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

Toggle Clasp.  Strand is 18", and the drop is 2 1/4".