A 14 Karat Yellow Gold, Color Change Sapphire and Diamond Ring, containing one oval mixed cut color change sapphire weighing 5.69 carats and 28 round brilliant cut diamonds weighing approximately 1.40 carats total.Stamp: 14K.Accompanied by a Gemological Institute of America sapphire identification and origin certificate number 1182932554, dated December 13, 2017, stating Species: Natural Corundum, Variety: Sapphire, stating Origin: Madagascar, Color: Blue-Green changing to Grayish Purple, Enhancement: No gemological evidence of heat. 3.20 dwts.