Signet Jewelers Limited is the world's largest retailer of diamond jewelry. Operating banners including Kay Jewelers, Zales, Jared, Banter by Piercing Pagoda, Blue Nile, James Allen and (in the UK) H.Samuel and Ernest Jones, it runs thousands of stores across the US, Canada and the UK. Legally incorporated in Bermuda, its operational headquarters is in Akron, Ohio.