Diamonds: Under the Hammer


De Grisogono the largest flawless D-Colour diamond to be auctioned by Christie’s

The Swiss luxury jeweller de GRISOGONO has partnered with Christie’s to present: The Art of de GRISOGONO, which will bring to auction the most exquisite diamonds ever offered to the market.

Setting up the new standard in diamonds, the unique necklace features 163.41-carat, D colour, flawless is an IIA type diamond. The jewellery will be under the hammer in Geneva on 14 November 2017, as part of the Magnificent Jewels sale at the Four Seasons Hotel des Bergues preceding the exhibitions in Hong Kong, London, Dubai and New York.


Cut from 404 carats-rough, which was discovered in early February 2016 in the Lulo mine, located in the Lunda Sul Province in Angola. Given the name, “4 de Fevereiro,” it is the 27th biggest rough white diamond ever discovered and the largest in Angola. Fawaz Gruosi, founder of De Grisogono, purchased the rough diamond. He had it analysed in Antwerp and cut in New York, where a team of 10 diamond-cutting specialists were involved in mapping, plotting, cleaving, laser-cutting and polishing the rough into the gem that will soon go to auction. The cutting process alone took 11 months.

Perfecting the each detail in the jewellery, 14-craftsmen took 1700 hours to complete it.

Beautifully curated


The diamond is the centre piece in the an asymmetric necklace, trailing on the left side 18 emerald-cut diamonds and to the right two rows of pear-shaped emeralds, offering a fresh contrast to the cool white diamonds. According to Gruosi’s superstition – green means good luck –and hence, emeralds take a central part in his collections.

No gold is visible between the emeralds as each gem is perfectly matched with its neighbour and the metal is darkened to create the chiaroscuro effect that is so characteristic of de GRISOGONO. The prongs holding in place the 163.41 carat diamond disappear under four baguette-cut diamonds creating an effect of dazzling brilliance. The reverse side of the gold basket is engraved with the diamond’s weight and set with yet more diamonds.

“Over our 251 year history, Christie’s has had the privilege of handling the world’s rarest and most historic diamonds. The sensational 163.41 carat perfect diamond suspended from an elegant emerald and diamond necklace propels de GRISOGONO into a class of their own” commented Rahul Kadakia, International Head of Christie’s Jewels.

Christie’s is honoured to present to the world this masterpiece of unparalleled beauty and exquisite workmanship during their preview exhibitions at the various locations.




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