This Book of Kells brooch is rhodium plated and is enhanced with an enamel design that features a Celtic cross with interwoven knot-work. The Irish brooch measures 1 5/8” wide and is gift boxed with Celtic cross and Celtic knot history cards, complements of The Irish Gift House.The brand name and logo featured on this piece of Irish jewelry are registered trademarks of Trinity College, Dublin; it is crafted under license by Solvar Jewelry in Dublin, Ireland.