Sterling Silver Marcasite Pastel Gemstone Dainty Art Deco Brooch

Offered is a lovely vintage sterling silver marcasite brooch.  The Art Deco style bow design features an openwork ribbons with a row of baguettes at the center.  The light yellow, blue, and lavender prong set stones are boarded by double bands of marcasite facets. The pin measures 2″ across by 5/8″ across the widest point. There appear to be some illegible markings on the reverse side, but this also  was tested to verify metal content. The charming jewelry piece has no condition issues.  Total weight with stones. 5.1 grams