This is a Rare Flapper Habille Cameo. The setting is 14 kt white gold filigree. She wears a diamond. In the corners are 4 green stones, glass, or semi-precious. Very large, 1 by 2 Has a large fold down bail, pendant only. Love the lacy parasol.
Bona Sforza Queen of Poland Cameo by Giovanni Jacopo Caraglio (Italian, Parma or Verona ca. Krakow - Sardonyx, with gold and silver details; mounted in century as a pendant in gold, with enamel, pearl and ruby