An exceptional Art Deco platinum ring, centering a dazzling old mine cut diamond weighing 3.02 carats, mounted in a finely detailed hand-engraved setting. The center stone is flanked by baguette-cut diamond accents totaling approximately 0.20 carats, adding brilliance and symmetry to the design. The intricate filigree and engraved platinum mount exemplify the meticulous craftsmanship of the Art Deco era, with bold geometry and ornate detailing.