Art Deco Filigree Diamond Dinner Ring

This is an exquisite example of an antique Art Deco period dinner ring, likely dating from the 1920s to 1930s. The ring features an elongated navette or marquise-shaped face, characteristic of the 'long-finger' style popular during the era. It is crafted from a white metal, most likely 14k or 18k white gold or platinum, showcasing intricate piercing and filigree work. At its center resides a principal Old European Cut or Transitional cut diamond set in a square illusion box setting, flanked vertically by two smaller round accent diamonds. The metalwork is further embellished with fine milgrain edging and decorative scroll-work motifs. Structurally, the ring appears to have a delicate open-gallery which allows light to penetrate the stones. Regarding condition, there is visible surface oxidation and a dark patina within the recessed areas of the filigree, which is expected for its age. The central stone appears securely set, though some of the finer milgrain detail shows signs of smoothing from decades of wear. The craftsmanship exhibits high-quality hand-finishing common in early 20th-century jewelry, making it a desirable collector's piece.