An elegant Art Deco platinum and diamond ring, circa 1920s–1930s, centered by an impressive old mine cut diamond weighing approximately 1.54 carats.

The center diamond is held within an intricately crafted platinum mounting characteristic of the period, featuring delicate openwork filigree, fine milgrain detailing, and beautifully engraved shoulders. Three additional small diamonds are set along each side of the center stone, for a total of six accent diamonds, adding subtle brilliance while allowing the 1.54-carat center diamond to remain the focal point.

The pierced gallery and finely detailed platinum work give the ring a distinctly architectural yet feminine quality, showcasing the exceptional craftsmanship associated with early 20th-century jewelry.

The interior of the shank is stamped PLAT and bears an additional number, appearing to read 50701.