Cartier London Art Deco Platinum Diamond Ring

This vintage Cartier London ring, made in platinum circa 1930, features an Art Deco cluster design with polished borders, a geometric openwork gallery, and fancy open backholing. At its center is a 2.11 carat square step cut diamond (H color, VVS2 clarity) in an open-back claw setting. It is framed by baguette and step-cut diamonds in open-back rubover settings for an approximate total diamond weight of 3.81 carats, with raised shoulders flowing into a solid D-shape shank. Signed “Cartier,” it comes with a GIA report, an IAJA Expertise report, and the original fitted box.