A Yellow Gold, Sri Lanka Star Sapphire and Diamond Ring, containing one round cabochon cut star sapphire weighing 12.72 carats, and eight round brilliant cut diamonds weighing approximately 0.30 carat total.Accompanied by a Gemological Institute of America sapphire origin report number 1182679294, dated August 25, 2017, stating Species: Natural Corundum, Variety: Natural Star Sapphire, Origin: Sri Lanka, Treatment: No indications of heat. 13.90 dwts.