An elegant Art Deco platinum and diamond ring, dating to approximately 1930, centered by a beautiful 1.10-carat old mine cut diamond.

The center diamond is framed by an intricate, symmetrical platinum setting featuring four marquise-cut diamonds and 20 round-cut diamonds. Delicate milgrain borders, pierced openwork, and graceful geometric curves create the finely detailed appearance characteristic of Art Deco jewelry.

The four marquise-cut diamonds weigh approximately 0.013 carat each, while the 20 round diamonds weigh approximately 0.015 carat each, adding subtle brilliance throughout the mounting while allowing the antique center diamond to remain the focal point.

The detailed platinum setting transitions into a polished shank, balancing the elaborate face of the ring with a clean, understated profile. A beautiful example of early 20th-century diamond jewelry with a distinctive antique presence.