Her new “Ocean” collection was inspired by Myanmar’s traditional articulated fish jewelry, with depictions of flounder, catfish, and more.
Mouawad Buys Biggest ‘Dynasty’ Diamond
The 51.38-carat stone was one of five diamonds cut from a 179-carat piece of rough mined in Russia.

Moscow—Mouawad Group has purchased the 51.38-carat “Dynasty” diamond, the largest of the five stones Alrosa cut from a 179-carat rough diamond.
The price paid for the diamond, a round brilliant the GIA graded as D color and VVS1 clarity with a triple excellent cut, was not disclosed, though Alrosa did say that the sale of all five diamonds totaled $10 million.
It is the highest quality diamond of its size ever cut and polished by Alrosa and is also now the most expensive stone ever sold by the diamond mining company.
Alrosa unearthed the 179-carat rough diamond in 2015 at the Nyurbinskaya kimberlite pipe in the Republic of Sakha (Yakutia) and called it “The Romanovs,” a nod to Romanov-era ruler Peter the Great, who ordered the development of the country’s diamond deposits.
It cut and polished the stone at its facilities in Moscow, placing cutters on week-long leaves from time to time because of the stress and intensity of the job, and unveiled the five resulting stones last August. (The entire collection has the same name as its largest stone, “The Dynasty.”)
In December, the diamond miner announced that four out of the five smaller Dynasty diamonds, which ranged in size from 16.67 to 1.39 carats, found buyers, but it pulled the 51.38-carat diamond from the sale because it did not receive a bid for the stone that it deemed to be high enough.
In a joint statement provided by Alrosa, Fred and Pascal Mouawad said the company plans to add the Dynasty to its collection of historic diamonds, which is described on the Mouawad website as “museum quality.”
Among the historic diamonds once owned by the family is the famous Taylor-Burton diamond, which Robert Mouawad bought in the 1970s. It has since been sold to a private collector, a company spokesperson told National Jeweler back in 2011.
“What attracted us to the Dynasty is not only its exceptional quality but the transparency of its history and the fact it’s the largest and most valuable diamond ever sold by Alrosa,” the Mouawads said. “It’s a rare gem with a remarkable record.”
Editor’s note: This story was corrected post-publication to reflect the fact that $10 million was the price paid for the entire collection, not just the 51-carat Dynasty
The Latest

Longtime Casio executive Yusuke Suzuki is the new president and CEO of Casio’s U.S. subsidiary.

Model Georgina Rodríguez received a rock of an engagement ring, with her diamond estimated to be 35 carats, experts say.

As a leading global jewelry supplier, Rio Grande is rapidly expanding and developing new solutions to meet the needs of jewelers worldwide.

Three winners will receive a custom ring from Honest Hands Ring Co. inlaid with a piece of history from Denver-based distillery Stranahan’s.


JD Sports and Wawa were among the fastest-growing retail companies in the U.S. last year.

The new inventory, all untreated, features vibrant hues and unique bicolor combinations.

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

Acquired by a tech investor, the historic brand will continue to focus on jewelry, accessories, and timepieces.

President Donald Trump issued an executive order extending the pause on higher tariffs to November as negotiations with China continue.

The “Thunderbird Slab” collection features a thunderbird motif as a symbol of power, protection, and boundless possibility.

Columnists Jen Cullen Williams and Duvall O’Steen share tips on how to elevate your professional image.

Peter Damian Arguello, a jeweler in the Denver suburb of Wheat Ridge, was found dead inside his store in November 2023.

The retailer, owned by Berkshire Hathaway, is becoming part of the Berkshire Hathaway Jewelry Group with Helzberg.

The Continental Buying Group’s 2025 Tampa Experience Show is slated for Sept. 8-10.

Associate Editor Lauren McLemore recently attended a fabrics trade show where a trend forecaster shared her predictions for summer 2027.

The company raised its full-year sales guidance while noting it has not yet assessed the potential impact of the latest tariff news.

The organization has raised more than $1.3 million for charity since its inception.

The brand’s latest iteration of a bezel-set diamond bangle features clean lines and a timeless design for a new modern silhouette.

The first watch in the series commemorates his participation in the Civil Rights movement, marching from Selma to Montgomery in 1965.

The catalog contains a complete listing of all the loose gemstones in stock, as well as information about the properties of each stone.

The company added a retailer dashboard to its site and three new birds to its charm collection, the cardinal, blue jay, and hummingbird.

An additional 25 percent tariff has been added to the previously announced 25 percent.

The jewelry and accessories retailer plans to close 18 stores as part of the proceedings.

Its Springfield, Massachusetts, store is set to close as owner Andrew Smith heads into retirement.

Designer Hiba Husayni looked to the whale’s melon shaped-head, blowhole, and fluke for her new chunky gold offerings.

She will present the 23rd edition of the trend forecasting book at Vicenzaoro on Sept. 7.