Diamond set gold and carnelian signet ring, Germany late 18th century

A diamond set gold and carnelian signet ring.??

German, late 18th century.

The bezel measures 1.35 x 1.34cm and the ring is a size N UK / 6 1/2 US.??

The carnelian is carved with an intaglio representing the coat of arms of its intended owner.

??The stone is set in an unusually shaped bezel in the form of a flower and is flanked by silver set table cut diamonds on a gold band decorated and pierced with scrollwork. The reverse of the bezel is finely decorated with a bunch of flowers.