Much of the jewelry from the Retro era was made of gold or sterling silver. For the first time in the 20th century, yellow (also rose and green) gold overtook production of white gold and platinum in the fine jewelry industry. It wasn’t because society fell out of love with white precious metals. The war effort superseded the public’s craving for them. Platinum and the alloys used to create white gold (nickel, copper, and zinc) were needed to make weapons
Retro jewelry was large and futuristic. In some ways, Retro pieces resembled the geometric jewelry of 1920’s Art Deco era. But Retro pieces were three-dimensional, not flat. Also, due to wartime scarcity, they weren’t adorned from top to bottom with glittering jewels like Deco jewelry. These bold, modern pieces went well with the masculine wartime fashions of famous designers Coco Chanel and Elsa Schiaparelli.