Signet Jewelers is the world's largest retailer of diamond jewelry, with a focus on bringing quality jewelry that expresses love and inspires trust among customers. The company owns several well-known brands such as Kay Jewelers, Zales, Jared, and Blue Nile, offering a wide range of fine jewelry and customizable designs. They emphasize sustainability and responsible sourcing in their operations. Signet aims to help people celebrate life and express love through their products while promoting human rights and preserving the environment. They have a strong market presence in the United States, Canada, and the UK.