Art Deco Simple Solitaire Diamond Engagement Ring in 14K.   This engagement ring features a .60 carat Old European cut diamond in a distinguished yet simple 14k yellow gold band. The diamond is rounded and was a very popular style of diamond cut during the Art Deco period. This antique gemstone sits in a six-pronged, hexagon setting that exhibits its strong facets and elegant charm. A lovely way to bring a bit of history to your engagement ceremony!