Centered with a prong set, rectangular cut blue stone (likely synthetic spinel) on an Art Nouveau style mount with three full cut round diamonds weighing approximately .42 total carat (G-H color, VS-SI clarity), on split shank, stamped 14K and with maker's mark J.A..

25 x 18.8mm; Ring size 7.5

6.2 dwt

Private Collection, Washington, North Carolina

Good estate condition.