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Lot 256. Pair of Diamond Pendent Earrings, Tops by Harry Winston. Estimate 5,500,000 - 6,500,000 HKD© 2021 Sotheby's

Each set with a pear-shaped diamond weighing 6.71 and 6.41 carats respectively, suspended from the marquise- and pear-shaped diamond cluster top, mounted in platinum, post and hinged back fittings, tops signed Winston, pendants detachable.

Accompanied by two GIA reports no. 5202632863 and 2165012505, both dated 13 January 2020, stating that the 6.71 and 6.41 carat diamonds are both D Colour, Internally Flawless.

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Lot 245. Cartier, Sapphire and Diamond Ring, Circa 1915Estimate 5,500,000 - 6,500,000 HKD© 2021 Sotheby's

Set with a cushion-shaped sapphire weighing 25.18 carats, decorated with old European- and single-cut diamonds, size 6¼, signed Cartier, case stamped Cartier.

Accompanied by AGL report no. 1110054, dated 21 September 2020, stating that the sapphire is of Burmese origin, with no gemological evidence of heat and no clarity enhancement; AGL further stating that the origin of this material would be classified as Classic™ Burma.

Also accompanied by SSEF report no. 120133, dated 16 December 2021, stating that the sapphire is of Burmese origin, with no indications of heating.

Sotheby's. Important Jewels, Hong Kong, 18 February 2022