Vintage Silver Plated & Jadeit or Chrysoprase Screw Back Earrings

These earrings are stunning! They feature a large oval Jadeit or Chrysoprase glass stone and set with a beautiful prong setting surrounded by an etched flowing platform. The top platform could pass for silver but I think with no markings it is silver plating over brass as the backs have worn plating & you can see the brass. Hallmarks: None Measurements: 1” Diameter Condition: Beautiful vintage condition with no noted flaws