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Share-based compensation
3 Months Ended
Apr. 29, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Share-based compensation
Share-based compensation
Signet recorded share-based compensation expense of $2.7 million for the 13 weeks ended April 29, 2017, related to the Omnibus Plan and Share Saving Plans (13 weeks ended April 30, 2016: $3.8 million).