Vintage Sterling Connemara Marble Cabochon Brooch

This vintage brooch is made of Irish sterling silver and has a modern locking c pin closure. The brooch features a round green Connemara marble cabochon surrounded by ribbon-style openwork, half accented with marcasite. The back of the brooch is stamped SP (maker), Irish Sterling, and also has 3 small square hallmarks. In order, they are (1) a woman seated with a harp ("Hibernia mark"), a symbol for the city of Dublin, (2) a small harp ("Harp crowned"), an Irish symbol often used in silver hallmarks for 92.5%, and (3) a capital Z (date mark) which corresponds to the year 1996 in the Dublin Assay Office's hallmarking system. The brooch has wear throughout, but there are no issues affecting wearability. Love the piece but not the price? Make an offer!