Round silver antique Bozbend most probably Ersari or Yomud. The rather large fire carnelians indicate an earlier manufacture; the construction of the case and the quality of the silver also indicate a pre-1930's manufacture - most probably end of the 19th century.
The central pendant is a replacement for a drop which would have had an inset carnelian.
Measures: 8 " H x 3 3/4 W