The 1920’s and 1930’s, in particular, was also a period where Hollywood film sets embraced the Art Deco architecture, which inspired many other fields. Art Deco rings, for instance, featured colorful gems in linear forms as well as popular geometric shapes.         The colorful gemstone choices were usually white diamonds, black onyx, red rubies, green emerald, and blue sapphire. Besides, contrasting colors were often used in that period too; white gold and platinum were preferred over yellow gold. Fancy gemstone and diamond cuts also became popular in the Art Deco era, comprising the Asscher, baguette, and emerald cuts. Most of the Art Deco jewelry was influenced by trends in art, especially Futurism and Cubism. Chinese motifs were used in the Art Deco style jewelry too. Nowadays, the Art Deco jewelry is popular in the film fraternity, too, thanks in part to vintage-inspired diamond rings. You could find many Hollywood celebrities who have gifted Art Deco, such as the tiered diamond ring, to their partners.