Art Nouveau diamond two stone cross over ring. Set with two round old cut diamonds in open back claw settings with a combined weight of 0.80 carats, further set with eleven round old single cut diamonds of varying sizes in open back grain settings with a combined weight of 0.15 carats, and eight round rose cut diamonds in open back grain settings with a combined weight of 0.05 carats. The total approximate diamond weight is 1.00 carats, to an elegant crossover form with scrolling shoulders, intricate pierced claws and fancy backholing, flowing down to a solid D-shape shank. Marked 14 carat yellow gold with platinum settings, circa 1905.