Signet Jewelers
（重定向自Ratners）
Signet Jewelers Ltd. (Ratner Group 1949-1993 then Signet Group plc to September 2008) is the world's largest retailer of diamond jewelry. The Hamilton, Bermuda-domiciled, Akron, OH-headquartered company is listed on both the New York Stock Exchange and the London Stock Exchange. The group operates in the middle market jewelry segment and has number one positions in the U.S., Canada and UK specialty jewelry markets. Certain brands (Jared in the U.S. and Ernest Jones/Leslie Davis in the UK) operate in the upper middle market.