Sold by Christie's, the Cartier diamond and emerald brooch, which can also be worn as a pendant, dethrones a piece of jewellery made by the fashion house Bulgari
A rare square 37-carat emerald owned by the Aga Khan fetched nearly nine million dollars at auction in Geneva on Tuesday, making it the world's most expensive green stone.
Sold by Christie's, the Cartier diamond and emerald brooch, which can also be worn as a pendant, dethrones a piece of jewellery made by the fashion house Bulgari, which Richard Burton gave as a wedding gift to fellow actor Elizabeth Taylor, as the most precious emerald.
In 1960, Prince Sadruddin Aga Khan commissioned Cartier to set the emerald in a brooch with 20 marquise-cut diamonds for British socialite Nina Dyer, to whom he was briefly married.
Dyer then auctioned off the emerald to raise money for animals in 1969.
By chance that was at Christie's very first such sale in Switzerland on the shores of Lake Geneva, with the emerald finding its way back to the 110th edition this year.