Signet derives from the Latin word “signum” translating to “sign” (as in signature). The oldest signet rings were carved with a distinctive emblem that was used as a signature on documents and letters. Until the invention of the mail system and the stamp, signet rings incised with a family crest, initials or other image were still used to form wax seals on correspondence. This Edwardian signet ring is made in 9k gold and features a heraldic boar (a beast that features in the crests of so many families that it's hard to say for certain who it belongs to). British hallmarks.