An Impressive Retro Rose Gold, Platinum, Ruby and Diamond Brooch, in an abstract openwork ribbon motif, containing 30 oval and round cabochon cut rubies measuring from approximately 4.50 x 4.40 x 2.55 mm up to 7.80 x 6.50 x 2.80 mm, and 16 bezel set round single cut diamonds weighing approximately 0.16 carat total, the brooch measuring approximately 98.00 x 90.00 mm.Accompanied by an American Gemological Laboratories ruby identification and origin certificate number CS 1076786, dated July 13, 2016, stating Mineral Type: Natural Corundum, Variety: Ruby, Origin: Burma (Myanmar), Enhancement: No gemological evidence of heat, Clarity Enhancement: None. 36.60 dwts.