Pritesh Patel, the lab’s chief operating officer, will take over as president and CEO of GIA.
Sotheby’s Selling 100-Carat Round Brilliant for Over $33M
The D color, flawless diamond is available through private sale at the Sotheby’s Diamonds retail store in London.

London--On the occasion of the first anniversary of the opening of Sotheby’s Diamonds, the auction house’s retail boutique on New Bond Street, Sotheby’s is unveiling a very rare diamond for sale.
It’s offering a 102.34-carat, Type IIa, D color, flawless, round brilliant diamond.
Sotheby’s said the GIA-graded stone is the largest round, D color, flawless diamond on record, and the only round brilliant over 100 carats with perfect color and clarity.
The auction house displayed the stone to the public Feb. 8 and 9 at the New Bond Street salon.
De Beers mined the original rough diamond, which weighed 425 carats, in Botswana about two years ago, then Diacore cut and polished the stone in Johannesburg and New York over a period of six months.
Though Sotheby’s isn’t publicly disclosing the exact asking price, a spokesperson for the auction house told National Jeweler it expects the diamond to sell for more than any of the seven diamonds over 100 carats sold at auction, of which Sotheby’s sold five.

The most expensive of those stones was a 118.28-carat D color, flawless, Type IIa oval diamond that sold for $30.8 million, or $260,252 per carat, at Sotheby’s Hong Kong in October 2013. It currently holds the price-per-carat record for a colorless diamond at auction.
Sotheby’s said that the round will not only beat that price per carat, but also top the highest price paid for any diamond jewelry at auction, which stands at $33.7 million for De Grisogono’s “The Art of De Grisogono, Creation I,” auctioned at Christie’s last November. That necklace featured a 163.41-carat emerald-cut stone.
The asking price for this stone is “considerably higher,” Sotheby’s said.
Patti Wong, founder and chairman of Sotheby’s Diamonds, said: “This stone is over 100 carats of flawless perfection. In the course of my long career, which has brought me close to some of the greatest stones the earth has ever yielded, I have not encountered anything quite like this.
“With its outstanding weight, its perfect color, clarity and cut, it is a masterpiece of nature brought to life by human hand, blazing with a brilliant
Sotheby’s operates two other Sotheby’s Diamonds retail locations, one in New York and one in Hong Kong.
The Latest

National Jeweler and Jewelers of America discuss the standout jewelry trends and biggest news to emerge from the shows this year.

Signatories to the “Luanda Accord” committed to allocating 1 percent of annual diamond revenue to the Natural Diamond Council.

The Seymour & Evelyn Holtzman Bench Scholarship from Jewelers of America returns for a second year.

The winning designs captured the “Radiance” theme.


Nominations in the categories of Jewelry Design, Media Excellence, and Retail Innovation will be accepted through July 30.

The singer’s ring ticks off many bridal trends, with a thick band, half-bezel setting, and solitaire diamond.

The countdown is on for the JCK Las Vegas Show and JA is pulling out all the stops.

The bracelet references vintage high jewelry and snake symbolism as a playful piece where a python’s head becomes a working belt buckle.

The heist happened in Lebec, California, in 2022 when a Brinks truck was transporting goods from one show in California to another.

The Starboard Cruises SVP discusses who is shopping for jewelry on ships, how much they’re spending, and why brands should get on board.

To mark the milestone, the brand is introducing new non-bridal fine jewelry designs for the first time in two decades.

The gemstone is the third most valuable ruby to come out of the Montepuez mine, Gemfields said.

Founder and longtime CEO Ben Smithee will stay with the agency, transitioning into the role of founding partner and strategic advisor.

Associate Editor Natalie Francisco shares 20 of her favorite pieces from the jewelry collections that debuted at Couture.

If you want to attract good salespeople and generate a stream of “sleeping money” for your jewelry store, then you are going to have to pay.

The top lot was a colorless Graff diamond, followed by a Burmese ruby necklace by Marcus & Co.

Gizzi, who has been in the industry since 2001, is now Jewelers of America’s senior vice president of corporate affairs.

Luca de Meo, a 30-year veteran of the auto industry, will succeed longtime CEO François-Henri Pinault.

Following visits to Vegas and New York, Botswana’s minerals minister sat down with Michelle Graff to discuss the state of the diamond market.

The “Your Love Has the Perfect Ring” campaign showcases the strength of love and need for inclusivity and representation, the jeweler said.

The former De Beers executive is the jewelry house’s new director of high jewelry for the Americas.

The New York Liberty forward is the first athlete to represent the Brooklyn-based jewelry brand.

Take a bite out of the 14-karat yellow gold “Fruits of Love Pear” earrings featuring peridots, diamond stems, and tsavorite leaves.

The one-day virtual event will feature speakers from De Beers, GIA, and Gemworld International.

The California-based creative talks jewelry photography in the modern era and tackles FAQs about working with a pro for the first time.

Al Capone’s pocket watch also found a buyer, though it went for less than half of what it did at auction four years ago.