6529 | A 10.05 CARAT BURMESE ‘ROYAL BLUE’ SAPPHIRE AND DIAMOND RING
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Set with a cushion-shaped sapphire weighing 10.05 carats， decorated with diamonds， mounted in 18K gold， ring size 6¾ Gübelin， 2018， report no.18071125， 10.05 carats， Burma， no indication of thermal treatment， 'royal blue'
