Antique 18ct Gold Stamped, 1920s Emerald Cut Aquamarine & Diamond Cocktail Ring

This 1920s cocktail ring is crafted in 18-carat gold and features an emerald-cut aquamarine as its centerpiece, accompanied by diamond accents. The ring bears period-appropriate hallmarking consistent with early twentieth-century British or European manufacture. The emerald cut—a step-cut style favored during the Art Deco period—emphasizes the clarity and color of the aquamarine while the colorless diamonds provide contrast. As a vintage piece, the ring reflects the design preferences and manufacturing techniques of its era.