Vintage Platinum or White Gold Diamond Three-Stone Filigree Ring

This is a vintage three-stone ring, likely dating from the early 20th century, specifically the Edwardian or Art Deco period (circa 1910-1930). The ring features three primary round-cut diamonds set horizontally across the finger. The central diamond appears slightly larger than the two flanking stones, a classic 'trilogy' arrangement symbolizing past, present, and future. Each stone is secured in a bezel or heavy prong setting within an ornate openwork mounting. The metal is likely platinum or 18k white gold, consistent with the high-quality craftsmanship of the era. The mounting is characterized by intricate filigree and potentially fine milgrain detailing on the edges, which were hallmark decorative techniques of the early 1900s. Physically, the ring has a low-profile, dome-like structure that flows into a tapered band. Though the image is slightly out of focus, the diamonds appear to be Old European or Transitional cuts, known for their large facets and high crowns which produce a distinct 'inner fire' under low light. The setting shows some softening of the metal detail, indicative of regular wear over several decades, though the structural integrity seems intact without visible missing stones. There are no visible maker's marks or hallmarks in this view, but those would typically be found on the interior of the shank. The overall quality suggests a high-end piece of period fine jewelry, prized for its handmade aesthetic and historic character.