This exceptional antique Art Deco platinum ring is a masterful example of the era's celebrated craftsmanship and architectural elegance. Dating to the 1920s, the ring showcases three vibrant round blue sapphires totaling approximately 3.33 carats, each beautifully secured in a bezel setting and highlighted by delicate filigree work and exquisite hand-applied milgrain detailing. Tiny round brilliant cut diamond accents surround each sapphire setting, adding subtle brilliance while emphasizing the intricate openwork design. Additional diamond accents continue along the hand-engraved shoulders of the ring, where finely executed engraving further reflects the meticulous artistry synonymous with the Art Deco period. The accent diamonds total approximately 0.24 carat and are graded SI2 clarity and H color, providing a graceful sparkle that complements the richly colored sapphires. Expertly crafted in enduring platinum, this heirloom-quality ring embodies the timeless sophistication and geometric beauty that define one of the most collectible periods in jewelry design. The ring is a size 6.5 and can be professionally sized for the perfect fit, making it a remarkable addition to any antique or fine jewelry collection.