A signet ring is a type of ring that features a flat surface, often engraved with a family crest, initials, or a symbol. Traditionally, these rings were used to seal documents, leaving an impression in wax to signify authenticity. They are often made from precious metals like gold or silver and can be worn by both men and women. Signet rings have a long history, dating back to ancient civilizations such as the Egyptians and Romans. Today, they are often worn as a fashion statement or heirloom pieces, representing personal identity or family heritage.