Square-shaped emerald of 37.00 carats, marquise-shaped diamonds, platinum and 18k yellow gold (French marks), may be worn as a pendant, 1960, unsigned, numbered (indistinct)

This brooch was commissioned by Prince Aga Khan to Cartier Paris in 1960. It was gifted to his wife, Nina Dyer.
The brooch was offered for sale at Christie's inaugural Magnificent Jewels auction on 1 May 1969 in Geneva, Switzerland, at the Hotel Richemond as part of the collection of Nina Dyer.
A few years later, the brooch passed to Harry Winston.

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