SAPPHIRE AND DIAMOND RING Cushion-shaped sapphire of 5.71 carats, circular-cut diamonds, platinum, ring size 4? SSEF, 2010, report no. 55281: 5.716 carats, Kashmir, no indications of heating Gübelin, 2010, report no. 1010106: 5.71 carats, Kashmir, no indications of heating Please note that these reports are over 5 years old and might require an update. US$200,000-320,000