Art Deco Platinum Diamond Pin-Pendant

Art Deco Platinum Diamond Pin-Pendant
The open-work shield-shaped set with one old mine-cut diamond weighing approximately 1.10 carat, surrounded by small old mine-cut diamonds weighing approximately 2.50 carats total, measuring 2 ½ inches long and 1 inch wide.
Gross weight: 11.1 dwts
Color: H- K
Clarity: SI

Circa 1920s