A Sapphire and Diamond RingThe cushion-shaped sapphire, weighing 7.66 carats, within an openwork surround set with rose, marquise, pear and brilliant-cut diamonds, accented by pavé-set brilliant-cut diamonds to the half hoop, diamonds approximately 5.85 carats total, ring size 6注脚Accompanied by a report from SSEF. Please contact the Hong Kong Jewellery Department for more information.Accompanied by a Gubelin report stating that the natural sapphire has no indications of heat treatment. Report number 19041084, dated 23 April 2019. Accompanied by a Gubelin information sheet stating that natural unheated sapphires are rare.Accompanied by a GRS report stating that the natural sapphire is vivid blue (GRS type 'royal blue') colour, has no indications of thermal treatment and originates from Burma (Myanmar). Report number GRS2018-043369, dated 26 April 2018.7.66克拉天然無經加熱處理緬甸藍寶石配鑽石戒指鑽石共重約5.85克拉,戒指尺寸6,附SSEF證書,Gubelin證書及附件,及GRS證書