C1920's Art Nouveau Carnelian and top Sterling, Marcasite Brooch

top Beautiful vintage Art Nouveau-Victorian sterling, marcassite and carnelian brooch
The brooch is in very good condition and has been restored. The marcasites were missing from most of the settings. The brooch is 1-7/8" long and 1/2" wide
the stone is in very fine condition
It has a c style clasp and there are no markings on the piece.