We purchased an antique marquise cut diamond and enlisted the help of an incredibly talented designer and jeweler to build this custom ring around it. We wanted a ring that was true Art Deco given the stone's antique cut and we wanted the stone to be set east-west. Voilà! Made entirely of platinum (PT900), a GIA-certified central antique marquise cut diamond is set horizontally and surrounded by swirls of single cut diamonds. True to the Art Deco period, this ring is both delicate and substantia Art Deco Oval Platinum Diamond Ring, Art Deco Oval Diamond Ring With Brilliant Cut, Antique Oval Diamond Ring With Center Stone, Art Deco Oval Cluster Ring With Center Stone, Antique Oval Brilliant Cut Ring, Vintage Marquise Cluster Ring In Diamond White, Art Deco Marquise Diamond Ring With Center Stone, Vintage Diamond White Platinum Halo Ring, Art Deco Oval Ring With Center Stone