Vintage it must be at least 20 years old.
Art Deco jewelry (1915–1935)
The Art Deco period is one of the most popular and enduring design periods in jewelry’s history. The style reflected the flamboyant and playful attitudes of the era and gave birth to forms and motifs that continue to live on today. While the Art Deco period covers the early 1920s through 1935, its influence extends all the way through the 1950s and 1960s and indeed to the current day. In sharp contrast to the jewels of preceding periods, Art Deco jewelry design is defined by geometric forms and bold colors. Diamonds were extremely popular in the period and were often accompanied by the bright colors of rubies, sapphires and emeralds. The use of black onyx in contrast with white diamonds and rock crystal is a defining style of the period. Some of the great jewelry houses, including Cartier, Tiffany and Van Cleef & Arpels, are considered to have created some of their most iconic work during the Art Deco period.
A stylized design which was named after the 1925 International Exposition of Modern Industrial and Decorative Arts, held in Paris, France. Much of the Art Deco design was a transition from the earlier Art Nouveau, and as with the Art Mouveau epoch, was inspired by the Art of the American Indian, ancient Egyptian, and Greek and Roman architecture. Art Deco Jewelry motifs are characterized by geometric designs, diverse combinations of color and abstract patterns. In 1922, the opening of Tutankhamen's Tomb in Egypt inspired another Egyptian revival. Influences from cubism as well as African, Oriental, Persian/Islamic, Jugendstil and American Indian designs were common in Art Deco Jewelry. The early 1920s interest in Cubism and Dadaism as a new Art form, greatly influenced the Art Deco period. Additionally, the mysteries of the pyramids and a continuing revival of astrological studies, lent itself to Art Deco designs which in turn were incorporated in the Art Moderne period following 1930.
Art deco jewelry are one of the most sought after jewelry categories as demonstrated by high auction results for jewelry with a pedigree of that era