Amethyst Marcasite cheapest Marquise Sterling Brooch Silver Pin Vintage 925 Germany Art Deco

Amethyst Marcasite Marquise Sterling Brooch Silver Pin Vintage 925 Germany Art Deco
Materials: sterling silver metal marked (STERLING), amethyst colored stone & marcasite stones
Condition: very good vintage with a few missing marcasite stones with oxidation
1 7/8 x 15/16 inches
Maker's mark: Germany

Questions welcome. cheapest