Vintage Filigree Blue Floral Choker Necklace

This item is a vintage floral link necklace, also referred to in listings as a blue cabochon or cameo filigree necklace. The design, featuring ornate filigree work and rounded blue inserts, gives it a distinct Victorian or Art Nouveau revival look. The necklace consists of linked floral medallions connected by jump rings. Each medallion features detailed metal filigree surrounding a central, domed blue cabochon. The hardware is either copper or brass, I'm unsure.