33 - French Art Deco-era piece

French Art Deco-era piece Ring with an octagonal platinum setting (950‰) centered with a cushion-shaped old-cut diamond set in a claw setting, the surrounding band enhanced with old-cut and half-cut diamonds, and the shank featuring an openwork frieze. Weight of the main diamond: approximately 2.50 carats. Ring size—with adjustment spring: 51. Setting dimensions: 1.9 x 1.6 cm. Gross weight: 7.4 g. (A few chips, traces of cutting.)