Art Deco Diamond Dinner Ring, Old Mine 0.40ct

Centering a bezel set Old Mine cut diamond weighing app. 0.40ct., in a double frame of 24 Old European cut diamonds weighing app. 1.82ctw., arranged in a flat octagonal cluster design, fashioned in platinum (top) & 14k white gold mounting and shank. Circa 1920 (top) with later shank. Size 6.