The Collection of Jean Louis Chameroy, Offered Without Reserve - 24 Oct 2023
A Belle Epoque diamond and synthetic sapphire ring, early 20th century
A Belle Epoque diamond and synthetic sapphire ring, early 20th century, the oval cluster with a scalloped outline, millegrain-set with a concentric arrangement of circular-cut diamonds outlined with two rows of calibré-cut synthetic sapphires, mounted in platinum, size M1/2