The marquise checkerboard cut rock crystal quartz set to the center with a rope twist surround and with rope twist detailing to the wide tapered shank, stamped 750, signed Sabbadini / Made in Italy and with Italian registry mark.

20.7mm; Ring size 5.5

10.0 dwt.

Collection of a Lady, Aiken, South Carolina

A few nicks to crystal under magnification; otherwise, good estate condition.