After eight years, Gilbertson is leaving his post at the mining company, which is currently facing a slew of operational challenges.
Bonhams to auction world’s largest meteorite carving
Called “Yorick,” the meteorite is carved into the shape of a life-size skull and weighs more than 46 pounds.
New York--A life-size skull carved from a Gibeon meteorite will hit the auction block at Bonhams later this month, and the auction house expects the piece to sell for $300,000 to $400,000.
Called “Yorick,” the skull is the world’s largest known meteorite carving, according to the auction house. Artist Lee Downey created the piece by acid-etching the carving to uncover the meteorite’s singular, lattice-like “Widmanstätten” pattern.
Gibeon meteorite, which is iron-based and one of the rarest forms of the debris, originated billions of years ago from an unstable planet that existed briefly between Jupiter and Mars. During its journey through space, the meteorite’s alloys crystallized to form an octahedral crystalline structure that cannot be recreated on Earth.
Bonhams said when the meteorite met the Earth’s atmosphere some 1,000 years ago, it exploded over the Kalahari Desert in Namibia and was discovered by the Nama people.
Downey’s carving weighs 21,070 grams, which amounts to a little more than 46 pounds.
“By sculpting the skull’s undulating curves, and because each crystal reacted uniquely to the acid treatment, Downey brought out features never seen before in Gibeon,” said Claudia Florian, Bonhams co-consulting director for lapidary works of art, specimen gemstones and minerals. “It’s out of this world.”
Downey said he chose Gibeon meteorite because it “best embodies the ‘mystery’” of the human skull. He took measurements from an actual male skull to ensure realism and accuracy, and named the piece Yorick as a reference to the dead court jester whose skull triggers a monologue by Hamlet in the play of the same name.
Bonhams will put Yorick up on the auction block at its Los Angeles Lapidary Works of Art, Gemstones and Minerals sale scheduled for Nov. 24.
Editor's note: This article was updated Nov. 5 to reflect Bonham's pre-sale estimate of the carved skull.
The Latest

The new location is set to open this winter, featuring the retailer’s first rotating jewelry designer residency.

The pop artist appears in the latest campaign for the “Laurence Graff Signature” collection.

Colored gemstones, artisan finishes, mixed metals, and meaningful details are shaping demand in bridal jewelry.

One-of-a-kind pearls take the shape of ice cream cones, frogs, submarines, and other imaginative charms.


Charlotte Rose said her election is “a sign that this is an industry capable of change.”

Sponsored by Rio Grande Jewelry Supply

DCA is preparing the next generation of professionals by supporting workforce development, leadership growth, and career advancement.

The American jewelry house, founded by Latvian immigrants, has been creating American flag brooches since 1917.

The artwork celebrates the Atlanta jeweler’s legacy and symbolizes its commitment to supporting local artists and its community.

Its team can evaluate jewelry and watches, as well as luxury handbags, artwork, and collectibles.

Falling oil prices were a factor in the slight month-over-month improvement.

The new offering comprises more than 120 bridal and engagement ring styles with natural and lab-grown diamonds.

The clock is part of the celebration for the soon-to-open Rolex headquarters on New York City’s Fifth Avenue.

The public relations professional is remembered for her benevolent generosity and unwavering commitment to those around her.

The new watch commemorates Pokémon’s 30th anniversary.

The luxury retailer is now called Exemplar Luxury Group.

The “Lady” collection is a new take on old beauty standards with gemstone-adorned hair pins and combs, a compact mirror necklace, and more.

The new line is included in the e-tailer’s curation of jewelry celebrating America’s 250th anniversary.

All active members who earned their credential or designation before Dec. 1, 2025, are required to recertify.

The new jewelry collection uses a colorful palette of onyx, malachite, tiger’s eye, mother-of-pearl, lapis, turquoise, and coral.

Lee Michaels Fine Jewelry is celebrating 30 years in the Ridgeland, Mississippi community.

Sean Milliner has joined the company.

Classes will begin in August at GIA’s new Canary Wharf location.

The rainbow version of the ring, our Piece of the Week, features angel-cut, octahedral lab-grown sapphires designed to be worn as armor.

The new initiative donates a portion of the proceeds from select charms to charitable causes.

The Brooklyn-based jeweler created a limited-edition version of its “Aura” eternity band, set with gemstones in the team’s colors.





















