Geometric precision and bold material contrasts define Art Deco rings, produced between approximately 1920 and 1939. The style drew on Cubist abstraction, machine-age aesthetics, and ancient Egyptian motifs revived after the opening of Tutankhamun's tomb in 1922. The 1925 Paris Exposition Internationale des Arts Décoratifs codified the movement internationally, though the term "Art Deco" itself was not coined until a 1966 retrospective.
Platinum dominates this era, its cool white tone and tensile strength allowing intricate geometric frameworks with minimal metal visible around the stones. Designs favour strict symmetry — squares, octagons, stepped tiers, and chevron shoulders — in sharp contrast to the organic curves of the preceding Edwardian garland style. Step cuts define the period: emerald cuts for centre stones peaking from 1925, baguettes as flanking accents, and Asscher cuts with their distinctive square outlines. Calibré-cut coloured stones — sapphires, rubies, onyx — were precision-fitted into geometric channels, often combined with milgrain beaded edging.
Transitional pieces from 1915 to 1925 can blur the boundary between Edwardian and Art Deco, making hallmark dating particularly useful for British examples. Platinum was not compulsorily hallmarked in Britain until 1975, so many Art Deco platinum rings carry only an informal stamp. For help identifying period features, see our guide to identifying Art Deco rings.
