Emerald tiara circa 1900 coming up for sale at Sotheby's Geneva May 17 Auction, from the collection of Princess Katharina Henckel von Donnersmarck and probably the work of Chaumet.

Emerald tiara circa 1900 coming up for sale at Sotheby's Geneva May 17 Auction, from the collection of Princess Katharina Henckel von Donnersmarck and probably the work of Chaumet.

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