Victorian 18ct Gold & Banded Carnelian Signet Ring

An unusual 18ct75% pure gold (or 750 parts pure gold and 250 parts other metals) gold signet ringA ring with a central plaque on which one’s initials, a seal, or a crest is engraved. that was made circa 1880.  It has been set with a plain banded carnelian​A translucent red variety of chalcedony which in its turn is a form of cryptocrystalline quartz. ​Carnelian has​ been known and used since antiquity when it was sourced from the surfaces of the Egyptian and Arabian deserts. The ​most prized carnelian has a true blood-red color. which is a type of hardstone.  It has been cut across the white bandA type of ring which is an equal width all the way round. They are traditionally used for wedding rings.
so that if it were engraved the red part of the stone would show through underneath.  The shankThe circle of metal that attaches to the decorative part of a ring and encircles the finger. is an assymetrical design with alternating scrolls.  A great ring to wear on an every day basis.