Everything about this ring rates as a 10 out of 10.

A smooth convex cabochon of inky hued onyx is marquise shaped and set into a bezel of yellow gold. Smooth and silky in feel and set east west, it is certainly one of a kind.

Even better, the setting is replete with open work, filigree details from the lyrical under-gallery to the patterns on the shoulders and sides all in 14k yellow gold. Distinctive, smart, and evocative from circa 1925.