Art Deco Ruby and Diamond Cocktail Ring in 14k White GoldArt Deco Ruby and Diamond Cocktail Ring in 14k White Gold. This fabulous Art Deco cocktail ring features 1. 32 carats of emerald cut rubies and . 19 carats of single cut diamonds set in 14 karat white gold. The neat symmetry of the design allows the wonderful contrast of colors to take center stage. The rubies are channel set above and below the diamonds, which are prong set down along the center of the ring. If you are after a bit of flashy color in