This stone discovered a year ago in Angola is so pure and so large that even Christie's jewellery director David Warren can't contain his enthusiasm.
The centrepiece of the necklace is a 163.41-carat gemstone, which became the largest D flawless diamond ever to be offered at auction when it went under the hammer on November 15.
"The UAE is a very important market for us and has been for a very long time", Rahul Kadakia, the global head of jewellery of Christie's, who presided over the auction, told The National. D, according to gemologists, is the highest colour grade given to diamonds and indicates that the precious stone is absolutely colourless and therefore rare.
With a drawn-out round of rapid-fire bidding starting at 20 million francs, the necklace was finally sold to a telephone bidder, who wished to remain anonymous, for well above the asking price of 25 million. Experts, however, are bitterly disappointed as they had expected the diamond to be sold for at least £12 million more.
"Le Grand Mazarin" which is named after Cardinal Mazarin, an Italian cardinal, diplomat, and politician, who served as the chief minister to the kings of France, Louis XIII and Louis XIV, from 1642 until his death. Originally from the Golconda mines in India, the stone was set in the crowns of almost all kings and emperors of France since the early 18th century, Christie's said.
And it graced the crown of Napoleon I, Napoleon III and Empress Eugenie, among others. It has also said to be passed through the hands of famous French jeweler Frederic Boucheron and later the Baron von Derwies.
Christie´s said the seller was a private collector but did not reveal their identity.
Its sale Tuesday marked the first time that the diamond has appeared at auction in 130 years.
It brought the total for Christie's Geneva auctions in 2017 to $258,588,868, with 27 lots sold for over $1 million.