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Lot 1752. 5.22 carats Fancy intense blue diamond and diamond ring, mount by Cartier. Estimate: HK$25,000,000 - 30,000,000 / US$3,225,835-3,871,000. Courtesy Sotheby's.

Set with a cut-cornered rectangular modified brilliant-cut fancy intense blue diamond weighing 5.22 carats, to the single- and old European-cut diamond shoulders, mount signed Cartier, numbered, size 6.

Accompanied by GIA report no. 2205424972, dated 23 July 2020, stating that the 5.22 carat diamond is Fancy Intense Blue, Natural Colour, Internally Flawless.

Sotheby's. Magnificent Jewels, 7 October 2020, Hong Kong.