Antique Art Deco 2ctw Mine Diamond Emerald Natural Pearl Platinum Circle Brooch

An exceptional original Art Deco brooch, circa 1920s, crafted in platinum with the elegant geometry and fine handwork characteristic of the period. The open circular composition is set throughout with approximately 2.00 carats total weight of original old mine-cut diamonds, graded approximately G–H color and VS2–SI1 clarity, accented by precisely fitted natural calibré-cut emeralds and a graceful arrangement of natural pearls. Fine milgrain detailing traces the platinum framework, while stylized diamond-set foliage and dramatically elongated geometric elements give the piece a distinctly Deco profile. The combination of crisp architecture, softly luminous pearls, vivid emerald accents, and antique diamonds creates a jewel that feels remarkably sophisticated more than a century after its creation. The brooch weighs 7.2 grams and measures 1.50 inches in diameter. The original pin stem has been replaced with a 14-karat gold pin, consistent with a later functional repair.