An Original Art Deco Diamond Platinum Engagement Ring

French, 1920s

A platinum ring centered with an old cushion cut diamond (5.3 x 4.8 x 3.4 mm, approximately 0.73 ct)

framed by transitional, old mine and old single cut diamonds

estimated total diamond weight 1.18 ct

marked with dog’s head French platinum mark and maker’s mark

US ring size 8 1/2 (19 mm)