Vintage Deco Cluster Engagement Ring in Palladium.  This vintage Art Deco cluster engagement ring features a beautiful .70 carat Old European cut diamond in a dazzling palladium setting full of .27 carats of accent stones. The design of the ring is a wonderful example of the ornate style of the Art Deco period. Interwoven lines of palladium, featuring beautiful open work, complete with milgrain detail on the edges, make this a fabulous ring to gaze upon.