Circa 1920s, Platinum, American. This spectacular Art Deco cocktail ring features very white, very sparkly diamonds! Diamonds! Diamonds! …did anyone say it's all about the diamonds? Redolent of ribbon motifs, the curvilinear flow of platinum and round diamonds is juxtaposed by a crisp .85 carat emerald cut diamond (G color, VS clarity). As one would expect of fine twenties platinum jewelry, the fabrication is meticulous and quality obvious. Excellent condition.