Signet Jewelers
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Signet Jewelers is, as of 2015, the world's largest retailer of diamond jewellery. It is domiciled in Bermuda and headquartered in Akron, Ohio, and is listed on the New York Stock Exchange. It operates in the middle market jewellery segment and has number one positions in the US, Canada and UK speciality jewellery markets. It was founded in 1949.