Edwardian three row diamond ring. Set with three horizontal rows of five round old cut diamonds in open back claw and rubover settings, all fifteen with a combined weight of 1.50 carats, further set with two rows of four round eight cut diamonds, all eight in open back grain settings with a combined weight of 0.08 carats. The total approximate diamond weight is 1.58 carats. The rectangular form has open backholing with a pierced finger gallery to spilt tri-part motif shoulders and a solid tapered shank. Tested platinum, circa 1905.