The largest-ever D-flawless diamond to be put up for auction, mounted in a diamond and emerald necklace, sold for $33.7 million Tuesday night, including buyer’s fees. The white “Creation 1” diamond from Swiss jeweler de Grisogono weighs 163 carats. The hammer went down at 29.5 million Swiss francs ($29.7 million), excluding the buyer’s premium — around the midpoint of the pre-sale estimates before the auction at Christie’s in Geneva. The buyer was not immediately identified.
The massive emerald-cut diamond fashioned from Lucapa Diamond's 404 carat rough stone - the largest rough diamond ever recovered in Angola. In February 2016, Lucapa Diamond Company announced the discovery of the biggest recorded diamond in Angola, confirmed as a Type IIa D-color gem-quality stone. The 404-carat diamond from the Perth-based company’s Lulo project is also the 27th biggest recorded diamond in the world and the biggest diamond ever discovered by an Australian company. The jewel that was extracted from it is one of the largest D-Flawless emerald-cut diamonds the GIA has ever seen, and the largest ever to be offered for sale at auction. "The extreme rarity of a diamond of this quality cannot be overstated."
Also on the block was “Le Grand Mazarin”, a 19-carat pink diamond that once belonged to King Louis XIV, Napoleon Bonaparte and other French rulers. It sold for a hammer price of 12.5 million Swiss francs, obliterating the pre-sale estimate. Le Grand Mazarin was up for auction for the first time in 130 years, during a sell-off of French crown jewels. 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. The buyer wasn’t immediately identified.