This is gorgeous. The shield-shaped pendant is hand carved on the front side and etched on the reverse. It's bezel set with a rectangular-cut deep purple amethyst. 
 
Size: 3" tall (including bail) x 2" at the widest point x 0.35" thick (including the bezel)
32 mm x 10 mm rectangular-cut amethyst 
Overlay: 18K gold
Weight: 1 oz