As of May 2026 Signet Jewelers has a market cap of โน309.62 Billion. This makes Signet Jewelers the world's 3954th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On May 22nd, 2026 the market cap of Signet Jewelers was reported to be: