The world's largest jewelry retailer, Signet Jewelers offers some sparkle to shoppers on both sides of the Atlantic. Running rings around its smaller rivals, Signet is the largest UK jewelry retailer with about 500 stores under the H. Samuel and Ernest Jones names. Signet's Sterling Jewelers unit is a leading jeweler in the US with more than 2,900 stores, including 1,200-plus shops under the Kay Jewelers name, 650-plus stores under the Zale name, the off-mall Jared The Galleria of Jewelry format, and a host of stores under regional banners. Signet operates more than 150 stores in Canada primarily under the Peoples Jewellers name. The company also operates e-commerce jewelry site JamesAllen.com.