Sterling Silver ear cuff with a hematite bead. The second photo is an example of size on an ear model. One size fits most. I do not know if these beads are genuine hematite or if they are reconstituted, called hemalyke or hematine. Either way they have the gunmetal shine you are looking for.
Hematite Sterling Silver Ear Cuff 4mm bead Handmade - PZBN3CHC5