Sotheby’s will auction the diamond, which it says is “arguably the most significant pink diamond to ever appear at auction,” in June.
SSEF Begins Offering Age-Dating of Pearls
The Swiss company said it is the first gem laboratory to introduce age-dating for natural pearls as a client service.

Basel, Switzerland--The Swiss Gemmological Institute SSEF said it has become the first gem laboratory in the world to introduce age dating of pearls using carbon-14 (14C) as a service to its clients.
The research and services are offered in partnership with the Ion Beam Physics Laboratory at leading university ETH Zurich.
According to the ETH Zurich website, the 14C method measures the ratio of radioactive carbon (14C) to normal carbon (12C) in the nacre to determine the true age of pearls.
It can be used to provide valuable information about both the age of loose pearls and pearls set in jewelry.
Age determination not only can help support evidence of historic provenance in the case of antique jewelry and iconic natural pearls, but also can also be used to identify fraud in cases where younger pearls are mounted in historic jewelry or have been treated to appear older than they actually are.
The 14C age also is helpful to decide whether a pearl is natural or cultured since cultivation methods for certain mollusk species only started in the 20th century.
Age-dating, especially when it comes to historic pearls, won’t give a single date of formation, the SSEF said, but rather a range of years in which the pearl formed. It still can confirm, however, that the pearl is not, in fact, a modern formation.
SSEF Director Michael S. Krzemnicki told National Jeweler that age dating of pearls has been a topic of research at the lab for years driven by scientific curiosity and interest in the trade in this new approach for pearl testing.
“Having analyzed a selected number of pearls of clients in the last few months, we have now decided to offer radiocarbon age-dating as a specialized service to our clients,” he said.
The Latest

The retailer, recently acquired by Signet Jewelers, will lay off 119 employees in July.

The Swiss watchmaker introduced 17 new models at Watches & Wonders Geneva.

Distinguishing natural diamonds from laboratory-grown stones – now more available than ever – has been difficult for jewelers. Until now.

As part of the promotion, Smith will share his sales expertise during a 90-minute training session.


At Watches & Wonders, the Swiss brand unveiled a follow-up to last year’s Tonda PF GMT Rattrapante.

The “rêve” collection’s engagement rings and wedding bands are geared toward “sustainability minded customers.”

De Beers Institute of Diamonds provides the very best in diamond verification, education and diamond services.

A new word appears on the dial each day of the week.

Bensons Jewelers closed for good Feb. 24, impacted in part by the decline in foot traffic downtown since the onset of the pandemic.

Kolja Kiofsky has been with the crystal and jewelry company since 2010.

The Kruse GWS Auctions sale will include the replica “Taj Mahal” necklace Elizabeth Taylor made with Avon as well as a costume piece Marilyn Monroe wore.

Massimo Basei is moving up, while Chief Commercial Officer Martino Pessina is stepping down.

AGTA GemFair and the Denver Gem & Mineral Show also will have a presence on the show floor.

Sold by Christie’s Hong Kong, this masterwork of complications now holds the record for most expensive watch ever auctioned online.

The watch company expects first-quarter sales to fall as much as 15 percent due to inflation and tough comps.

Adam O’Grady, general manager of the Lightbox Lab, has taken on the new role and will report directly to Lightbox CEO Antoine Borde.

The watch marketplace gathered data from 1.3 million collectors, highlighting the most popular timepieces and exploring value appreciation.

Burgundy has opted not to exercise its option to buy the mining claims Gibb River Diamonds currently owns.

The organization said it will recognize those who exemplify the idea that doing good is good business.

Kendall Jenner once again is fronting the French brand’s campaign, joined by model and dancer Alton Mason.

The CEOs of Signet, Helzberg, and GIA spoke on a water conservation panel, and had lakes named in their companies’ honor.

Sales of the sleek sterling silver and diamond design will go to nonprofit organization charity: water.

Expected to earn up to $4.5 million, the “Jarretière” bracelet is the star of Christie’s “The Magnificent Jewels of Anne Eisenhower” sale.

With jewelry sales coming down from their pandemic highs, retailers need to do all they can to retain existing customers, Peter Smith says.

Jewelry historians, authors, and experts will explore the works of Tiffany & Co., Oscar Heyman, Verdura, and more.

Johnson joined the retailer in 1987, establishing its first human resources department.