Its “Quantre Sand” capsule was made using a 3D sand printing technique borrowed from the automotive and aeronautics industries.
Christie’s to Auction 163-Carat D Flawless Diamond
Polished and set into a de Grisogono necklace, it will be the largest flawless, D-color diamond ever to hit the auction block.

Geneva--When “The Art of de Grisogono, Creation I” necklace hits the auction block Nov. 14 in Geneva, the 163.41-carat diamond center stone will be the largest flawless, D-color diamond ever auctioned, according to Christie’s.
The road to reaching this record began in Angola at the Lulo mine in February 2016, with miner Lucapa’s discovery of the largest diamond ever found in the country, and 27th largest in the world, a 404.2-carat piece of rough.
Named the “4 de Fevereiro,” in honor of Angola’s Independence Day, de Grisogono acquired the Type IIa rough stone through its partnership with diamond trading company Nemesis International.
The 400-plus carat stone took 10 diamond cutting experts 11 months to analyze, map, laser cut and polish. The first cleave was done by hand in New York on June 29, 2016 and the completed emerald cut, 163.41-carat diamond was graded by the GIA in December 2016, then delivered to Geneva to de Grisogono founder Fawaz Gruosi.
Gruosi, who created de Grisogono in 1993, and his team created 50 potential designs for the stone and in February 2017 settled on what is now “The Art of de Grisogono, Creation I” an asymmetric collar featuring emerald-cut diamonds on one side and pear-shaped emeralds on the other.
“The green gives great contrast and enhances both colors,” Gruosi explained in a press release, “and, being Italian, I am superstitious. Green means good luck--you will see a lot of it in my collections.”
Over the next six months, 14 master craftspeople--consisting of eight jewelers, five setters and one engraver--spent 1,700 hours making Creation I by hand.
The stunning masterpiece features 18 emerald-cut diamonds that are graduated in size from 0.48 to 8.10 carats, totaling 48.64 carats.
A total of 862 brilliant-cut diamonds adorn the settings of these emerald-cut stones, totaling 6.52 carats. The setting of the 163.41-carat diamond, specifically, is 399 brilliant-cut diamonds, and the prongs are set with four baguette-cut diamonds.
Not to be outdone by the diamonds, 5,949 brilliant-cut emeralds totaling 38.84 carats serve as accents for the 66 pear-cut emeralds featured, which weigh 120.42 carats total. The clasp of the collar is hidden under a 0.54-carat emerald.
The little white gold that is visible in the design is plated in black rhodium, for what de Grisogono says is meant to invoke a chiaroscuro effort.
The diamond centerpiece may be detached from the collar and when Creation I sells, de Grisogono is willing to work with the buyer on other modular designs, so that the diamond can be incorporated into a cuff, tiara or brooch, for example.
Creation I is the first in a series of high jewelry creations de Grisogono plans to sell through Christie’s, using important diamonds that are notable in terms of scale and quality.
International Head of Christie’s Jewels, Rahul Kadakia, said: “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.”
The Art of de Grisogono, Creation I is on view now in Hong Kong, and will make stops next in London, Dubai and in New York at Rockefeller Center between Nov. 3 and 6, before heading to Christie’s Geneva, where it will be on view at the Four Seasons Hotel des Bergues.

The Latest

Four individuals have been charged in the “takeover-style” robbery of Heller Jewelers last month, and additional charges are expected.

“Radiance and Reverie” will showcase more than 150 jewels from Lane’s personal collection by Tiffany & Co., Cartier, and more.

The month’s birthstones, tourmaline and opal, complement the palette of autumn.


Smith shares the importance of looking at your company with openness and honesty to identify opportunities you may be missing.

Associate Editor Natalie Francisco visited Italy to spot jewelry trends at the September Vicenzaoro show and share her top finds.

With their unmatched services and low fees, reDollar.com is challenging some big names in the online consignment world.

Respondents were concerned about job availability and rising prices.

Its latest interim financials revealed a challenging first half due in part to production troubles at its mines.

Alexander Lacik has led Pandora since 2019. Berta de Pablos-Barbier will succeed him, the first woman to head the company.

Two men allegedly used counterfeit bills to purchase luxury watches and jewelry from a North Carolina jeweler.

The “Lovestruck” collection, designed with the Academy and Grammy award-winning siblings, is the brand’s first lab-grown diamond offering.

The brand, celebrating its 15th anniversary, has popped up at Market, a luxury fashion destination in Highland Park Village.

She was remembered as a creative and generous woman of faith, who also had a sweet tooth.

Move over neck mess, the ear story is the way to make a layering statement today.

The New York-based brand is set to launch a limited-time offering for the holiday season at Holt Renfrew in Toronto.

The “Volume 7” bridal catalog features best-selling engagement rings, trending styles, and a new section highlighting anniversary bands.

Holiday sales growth is expected to slow as consumers grapple with inflation and tariff-related uncertainty.

Jamie Turner Designs is among the winners of the local “Austin Shines” contest, hosted by Eliza Page, a jewelry store in Austin, Texas.

The red and azure colorway is one of many fun enamel pairings offered, bringing whimsy to the classic style of a monogramed signet ring.

A trade deal with Switzerland seems probable, but reaching an agreement with India remains a challenge, David Bonaparte said.

Botswana’s president said his country wants a controlling share, while Angola envisions multiple countries holding minority stakes.

The manufacturer is adding 1,400 chemical vapor deposition (CVD) reactors to its growing facility in India.

The jeweler to the stars has worked with Drake, A$AP Rocky, Tyler the Creator, and other celebrities.

The Scarsdale, New York-based jeweler donated a professional-grade watch cleaning machine.

The 50 percent tariffs on diamonds shipped from India to the U.S. have pushed midstream manufacturers to the edge.