Dating from the 1900s, this Edwardian navette-form diamond ring of platinum-topped gold (with later shank) is set with a cushion-shape sapphire weighing 2.95 carats accompanied by an American Gemological Laboratories report stating that the gem is "Classic Ceylon (Sri Lanka)", without evidence of heat treatment. A graceful form centering a velvety blue sapphire of beautiful antique cut and superior clarity, this refined ring sits low to the finger and showcases a rare and exquisite gem.