Centring on an oval sapphire weighing 5.29 carats, decorated with marquise-shaped and brilliant-cut diamonds extending to the shoulders, mounted in 18 karat white gold. Ring size： 6

AGL numbered CS 85236, 15 March 2016, stating the sapphire is 5.29 carats, natural, Blue colour, Burmese （Myanmar）, no gemological evidence of heat and no clarity enhancement；
GRS numbered GRS2016-038208, 2 March 2016, stating the sapphire is 5.29 carats, natural, Deep Royal Blue colour, Burmese （Bawmar, Myanmar）, no indication of thermal treatment；
Gübelin numbered 17037245, 6 March 2017, stating the sapphire is 5.29 carats, natural, Blue colour, Burmese （Myanmar）, no indication of heating； along with an information sheet, stating that ‘The demand for natural, unheated sapphires keeps growing while the supply of such gems remains limited, making large, natural sapphires of gem-quality from all major sources （such as Kashmir, Burma （Myanmar）, Sri Lanka, Madagascar and Tanzania） difficult to find.’

Price estimate:
HKD: 380, 000 - 480, 000
USD: 48, 700 - 61, 500

Auction Result:
HKD: --