Genuine Rhodium Plated Onyx Mens Ring with Masonic Emblem Polished into a Lustrous Silvertone Finish This onyx ring features a Masonic emblem and a shimmering silver tone. Genuine Rhodium Plating is achieved using an electroplating process that coats the item with heavy layers of rhodium a close cousin to platinum which gives our jewelry a platinum luster. Base Metal:Lead Free Alloy (Brass) Audience:Men Style:Classic Setting Type:Invisible Materials:Onyx Stone Cut:Round Color:Black Plating Color:Silvertone Finish Ring Band Width:5.6 mm