An 18 Karat White Gold, Sapphire and Diamond Ring, containing one oval cabochon cut sapphire weighing approximately 7.06 carats and 54 round brilliant cut diamonds weighing approximately 1.42 carats total.Stamp: 750 (maker's mark) 5028.Accompanied by an Gemological Institute of America sapphire report number 5121850335, dated November 29, 2010, stating Mineral Type: Natural Corundum, Variety: Natural Sapphire, Enhancement: No indications of heating. 4.90 dwts.