Carved Banded Sardonyx Signet Ring

A good quality 15ct62.5% pure gold (or 625 parts pure gold and 375 parts other metals). Popular during the Victorian, Edwardian and Art Deco eras but was discontinued in the mid-1930s. and signet ringA ring with a central plaque on which one’s initials, a seal, or a crest is engraved. which is probably European as the crest is not English. The stone is banded sardonyx which is a type of agateA variety of cryptocrystalline quartz (chalcedony), typically banded in appearance. The use of agate in jewellery dates back to the Stone Age.. It is well carved and very striking on the finger.