The Art Deco period was marked by a celebration of geometric patterns and adventurous use of color. These elements, combined with a prominent use of platinum, provided a sharp contrast from the sinuous and organic style of the proceeding Art Nouveau era. In the 1930s, Cartier used bright, variously-sized aquamarines to create some of their most noteworthy and intricate designs. The use of aquamarines became the primary focus, with or without diamond accents, and limited use of platinum.

Along with interest in earrings, rings and bracelets, the London branch received twenty-seven requests for aquamarine and diamond tiaras in 1937 alone. Many of these tiaras were worn to the coronation of King George VI that same year.