Russian Imperial Presentation Gold Ring with Diamonds, with a centerpiece 18th Century Cipher Pin for Catherine the Great.
The pin in the center originated in the late 1700s, and would have been worn by a lady-in-waiting to Catherine the Great, bearing her seal and initials. It was later repurposed into a Russian Imperial Court Ring, a common practice at the time, between 1850-1880.
The piece is classically made, with 6 carats of old mine cut and rose cut diamonds of exceptional color and clarity. The cipher is finely made in silver with gorgeous blue guilloche enamel. The piece bears no hallmarks. The ring would have been worn by someone who was part of the court.