Based on a design Suzanne Belperron crafted for herself between 1932 and 1940, this Casque Ring features a marquise-cut diamond set in carved rock crystal and platinum. It exemplifies her innovative “pierre noyée” technique, using minimal metal so gemstones seem to float or “drown” within their mounts.

GIA graded 3.76 carats marquise-cut diamond, carved rock crystal, and platinum