The deal closed this week, which means Instore will produce the JA NY show slated to take place this fall.
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

The company’s jewelry sales were up in Q4 and the fiscal year, with Richemont raising prices in part because of the cost of gold.

The “Bauble” capsule collection of colorful one-of-a-kinds includes our Piece of the Week, the “Bauble” earrings, featuring rose zircon.

As gold prices rise, today’s retailers are looking for alternatives at prices that will appeal to wider audiences.

The updated catalog has a newly dedicated section for gift wrapping.


Everett covers colored stones’ surging popularity, the mellow return of the “Mellon Blue,” and his “The Devil Wears Prada” doppelgänger.

Fourth-generation CEO Lilly Mullen wants to emphasize experience, connection, and personalized service.

With the trade and customer trust in mind, GIA® developed NextGem™ – on-demand training designed specifically for retail.

The new award, created in partnership with Henne Jewelers, honors the late designer’s legacy through supporting jewelry education.

The addition of the diamond-producing countries as nation affiliated members broadens the federation’s global representation, WFDB said.

The NYPD is warning elderly New Yorkers to keep their jewelry hidden when walking outside to avoid being a target.

Designer Viviana Langhoff has realized her dream of owning a space for her Chicago jewelry store that looks and feels like her brand.

The sessions will run from Friday, May 29, to Sunday, May 31, with one being a live taping of an episode of Couture’s podcast.

Former Stephanie Gottlieb Fine Jewelry executive Morgan P. Richardson is joining the lab-grown diamond jewelry brand.

The $400 pocket watch is a blend of Audemars Piguet’s iconic eight-sided Royal Oak and Swatch’s unserious Pop watches from the ‘80s.

With gold prices on the rise, the “Modern Electrum” collection uses an alternative, non-tarnishing metal alloy composed of gold and silver.

Fruchtman Marketing has new owners, Erin Moyer-Carballea and Manuel Carballea, and will relocate to Miami.

In a column for the 2026 State of the Majors issue, Smith lists 10 time-tested principles about sales that still ring true.

In a column for the 2026 State of the Majors issue, Golan spells out how the growing economic divide in the U.S. is reshaping the market.

The “Limitless Expansion of Joy and Hope” collection evokes summer through colored gemstones and motifs of butterflies and florals.

The jewel, circa 1890, is from the late Victorian era and was owned by descendants of the last high king of Ireland.

This is what the nine recipients plan to do with the funds.

The discussion, "Rebuilding the Jewelry Workforce," will take place on Saturday, May 16, in Troy, Michigan.

The jewelry industry is reassessing its positioning as Gen Z reshapes the retail landscape and lab grown continues to gain market share.

Sponsored by A Diamond Is Forever

The next generation of lapidarists are entrepreneurial, engaged online, and see the craft as a means for artistic expression.

It was the second auction appearance for the fancy vivid blue-green diamond, which sold for $7.8 million at Christie’s Geneva 12 years ago.
























