Deco Diamond Dangle Earrings in Yellow Gold. These late 1930s Art Deco diamond earrings a charming and brilliant. These delightful earrings are set with 2.40 carats of old European cut diamond in 14 karat yellow gold at the stationary post cascading into a single diamond dangle. They are the perfect example of representing the transition from white metals to yellow gold during the Retro period. The subtle design and minimal dangle create the perfect daily diamond earring.