Exhibit 99.1 SIGNET JEWELERS REPORTS FIRST QUARTER FISCAL 2025 RESULTS Delivered First Quarter Expectations Engagement Recovery Momentum Continues Reaffirms April Increase to Full Year Outlook HAMILTON, Bermuda, June 13, 2024 – Signet Jewelers Limited ("Signet" or the "Company") (NYSE:SIG), the world's largest retailer of diamond jewelry, today announced its results for the 13 weeks ended May 4, 2024 ("first quarter Fiscal 2025"). "Our results reflect notable acceleration from a sluggish February to the top ...