Lovely Vintage A Sterling Silver 925 Marcasite Stone Dome Ring Sz 8. Marcasites are all in tack & sparkling. There are three leaves of Marcasites. The ring has marked 925 & acid tested & proven to be sterling silver, in good used condition. Vintage Sterling Silver Marcasite Band Ring Size 8 3 Grams Silver 925 Marcasite Stone Dome Ring Estate Jewelry