The estate of the model, philanthropist, and ex-wife of Johnny Carson has signed statement jewels up for sale at John Moran Auctioneers.
Lucapa’s 404-Carat Diamond Sells for $16M
The Type IIa, D color stone found last month at the Lulo mine in Angola achieved a per-carat price of $39,580, a record price for a white diamond from the site.

Perth, Western Australia--Lucapa sold the 404.2-carat diamond uncovered at the Lulo mine in Angola last month for $16 million.
Its sale price of $39,580 per carat is a record price for a white diamond found at the site.
The diamond also holds a few other records, according to Lucapa.
The Type IIa, D color stone is the largest recorded diamond ever found in Angola, recovered from alluvial mining block 8 at the Lulo Mine.
It is the 27th largest known diamond in the world, and the biggest diamond ever discovered by an Australian mining company.
The stone is also the fourth 100-plus-carat diamond recovered from Lulo to date, as well as the 114th largest “special” diamond, meaning it weighs more than 10.8 carats, found at the mine.
The Lulo project is a partnership between Lucapa, Endiama, which is the national mining company of Angola, and Rosas and Pétalas.
Lucapa is the operator with a 40 percent interest in mining operations, followed by Endiama (32 percent) and Rosas and Pétalas (28 percent).
Alluvial mining operations at Lulo began in 2015.
“The sale of a single diamond for $16 million underlines the huge potential of the Lulo diamond field to regularly produce gems that are both large and of world-class quality,” Lucapa CEO Stephen Wetherall said. “We look to the future with tremendous excitement at Lulo as we continue mining these exceptional alluvial diamond areas, growing our alluvial mining capability and advancing the kimberlite exploration program to locate the primary source or sources of these gems.”
The Latest

Are arm bands poised to make a comeback? Has red-carpet jewelry become boring? Find out on the second episode of the “My Next Question” podcast.

It will lead distribution in North America for Graziella Braccialini's new gold pieces, which it said are 50 percent lighter.

Launched in 2023, the program will help the passing of knowledge between generations and alleviate the shortage of bench jewelers.

The organization is seeking a new executive director to lead it into its next phase of strategic growth and industry influence.


The nonprofit will present a live, two-hour introductory course on building confidence when selling colored gemstones.

Western wear continues to trend in the Year of the Fire Horse and along with it, horse and horseshoe motifs in jewelry.

Criminals are using cell jammers to disable alarms, but new technology like JamAlert™ can stop them.

Rossman, who advised GIA for more than 50 years, is remembered for his passion and dedication to the field of gemology.

Guthrie, the mother of “Today” show host Savannah Guthrie, was abducted just as the Tucson gem shows were starting.

Butterfield Jewelers in Albuquerque, New Mexico, is preparing to close as members of the Butterfield family head into retirement.

Paul Morelli’s “Rosebud” necklace, our Piece of the Week, uses 18-karat rose, green, and white gold to turn the symbol of love into jewelry.

The nonprofit has welcomed four new grantees for 2026.

Parent company Saks Global is also closing nearly all Saks Off 5th locations, a Neiman Marcus store, and 14 personal styling suites.

It is believed the 24-karat heart-shaped enameled pendant was made for an event marking the betrothal of Princess Mary in 1518.

The “Kering Generation Award x Jewelry” returns for its second year with “Second Chance, First Choice” as its theme.

Sourced by For Future Reference Vintage, the yellow gold ring has a round center stone surrounded by step-cut sapphires.

The clothing and accessories chain announced last month it would be closing all of its stores.

The “Zales x Sweethearts” collection features three mystery heart charms engraved with classic sayings seen on the Valentine’s Day candies.

The event will include panel discussions, hands-on demonstrations of new digital manufacturing tools, and a jewelry design contest.

Registration is now open for The Jewelry Symposium, set to take place in Detroit from May 16-19.

Namibia has formally signed the Luanda Accord, while two key industry organizations pledged to join the Natural Diamond Council.

Lady Gaga, Cardi B, and Karol G also went with diamond jewelry for Bad Bunny’s Super Bowl halftime show honoring Puerto Rico.

Jewelry is expected to be the No. 1 gift this year in terms of dollars spent.

As star brand Gucci continues to struggle, the luxury titan plans to announce a new roadmap to return to growth.

The new category asks entrants for “exceptional” interpretations of the supplier’s 2026 color of the year, which is “Signature Red.”

The White House issued an official statement on the deal, which will eliminate tariffs on loose natural diamonds and gemstones from India.























