Navajo silver bracelet with a large polished petrified wood cabochon at the center. Circa 1940s. The oval cabochon measures 1 3/16" x 7/8". The bracelet measures 2 3/8" at the widest point on the inside.  The gap at the back measures just over 1".  Unmarked.

 

The petrified wood cabochon is a beautiful specimen with wonderful craftsmanship.