GRS report numbered GRS2021-038360, dated 15 March 2021, stating the sapphire is 11.64 carats, natural, Vivid Blue colour (GRS-type "Royal Blue"), Sri Lankan origin, with no indication of thermal treatment.
Price estimate:
HKD 1,550,000 - 1,800,000
USD 198,700 - 230,800
Auction Result:
HKD: -
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