An 18 Karat Yellow Gold, Ruby and Diamond Ring, containing one oval mixed cut ruby weighing approximately 3.33 carats, and two old mine cushion cut diamonds weighing approximately 0.68 carat total.Accompanied by an Gemological Institute of America ruby origin report number 1172610400, dated May 27, 2016 stating Species: Natural Corundum, Variety: Natural Ruby, Geographic Origin: Burma (Myanmar), Enhancement: No indications of heating. 2.80 dwts.