This amethyst ring is a striking example of gold-work decoration that became popular in the second decade of the 18th century. A type of filigree work known as "cannetile" and named for the gold embroideries of the Napoleonic years, cannetile work made the most of a small amount of gold and required highly skilled goldsmiths. The amethyst stone is particularly eye-catching. The combination of the cannetile work next to the amethyst makes this an extraordinary ring. The ring is a US size 6.