Art Deco Filigree Diamond Engagement Ring

This is a vintage Art Deco period engagement ring, likely dating from the 1920s to 1930s. The ring is constructed with a white metal, most commonly 14k or 18k white gold or platinum, featuring intricate openwork filigree and milgrain detailing throughout the mounting. The central focus is a prong-set round brilliant or transitional cut diamond, flanked by smaller accent stones, possibly diamonds or single-cut gems, integrated into the North-South geometric shield design. The piece showcases characteristic Edwardian-to-Art-Deco styling with a lozenge-shaped face and delicate floral or heart-like motifs under the main setting. The craftsmanship involves high-quality metalwork typical of early 20th-century jewelry, showing fine piercing and symmetrical geometry. Condition appears fair to good; however, there is a visible glare on the central stone making a clarity assessment difficult. There is minor evidence of wear consistent with age, such as slight softening of the milgrain edges and potential thinning of the shank. No specific maker's marks or stamps are visible from this top-down view. This ring exemplifies the romantic, architectural elegance of the early 20th century.