A Platinum, 18 Karat Yellow Gold, Ruby and Diamond Ring, containing one cushion cut ruby weighing approximately 4.03 carats, and two half moon brilliant cut diamonds weighing approximately 0.52 carat total. Stamp: Plat.Accompanied by an Gemological Institute of America ruby identification certificate number 1156530365, dated July 18, 2013, stating Mineral Type: Natural Corundum, Variety: Ruby, Enhancement: Indications of heating. 5.00 dwts.