An Art Deco European-cut diamond brooch of lemniscate design with black enamel borders, in platinum and 18k. Tiffany & Co. Atw diamonds 4.75 cts (GH, VS1-SI1).

This elegant Art Deco brooch by Tiffany & Co. takes the form of a lemniscate, the mathematical symbol for infinity. Crafted in platinum and 18k gold, its interlacing loops create a continuously flowing silhouette. These sweeping curves are set with European-cut diamonds, their brilliance contrasting with the glossy enamel outlining each ribbon. The openwork construction allows light to pass through the diamonds, enhancing their liveliness.

Dating to the height of the Art Deco period, this brooch displays the era's fascination with bold contrasts and stylized geometry. The infinity motif, long associated with eternity and continuity, is interpreted here with architectural elegance. The result is a jewel that feels at once sculptural, symbolic, and surprisingly contemporary.