A 303-Carat Yellow Diamond Is Being Sold at Auction Without Reserve
“The Golden Canary” is one of the world’s largest polished diamonds, valued at more than $15 million.

Just days after announcing a group of eight blue diamonds, Sotheby’s has unveiled another notable gem: “The Golden Canary,” a 303.10-carat fancy deep brownish-yellow diamond.
Sotheby’s said it’s one of the largest polished diamonds in the world and the largest flawless or internally flawless diamond ever graded by the Gemological Institute of America.
Adding to its notability is its interesting provenance.
The Golden Canary’s story started in the early 1980s, when a young girl playing in her uncle’s backyard in the Democratic Republic of the Congo found it in a pile of rubble.
At the time, miners from the nearby Miba diamond believed the rubble to be too bulky to be diamond-bearing and discarded it, Sotheby’s said. Within it, there ended up being an 890-carat rough diamond.
The girl gave the stone to her uncle, who sold it to local diamond dealers.
The public got its first chance to see the rough diamond in 1984 at the Smithsonian National Museum of Natural History where it was on display alongside some of the world’s most notable diamonds and became a global sensation.
Over the next five years, it was cut into 15 finished stones, the largest of which was a shield-shaped 407.49-carat fancy deep brownish-yellow diamond formerly known as the “Incomparable Diamond.”
The Incomparable appeared in many museum exhibitions around the world, including “The Nature of Diamonds” at the American Museum of Natural History in New York in 1997, “Diamants” at the Muséum National d’Histoire Naturelle in Paris in 2001, and most recently in “The Nature of Diamonds,” an exhibition that toured The Royal Ontario Museum and the Houston Museum of Science in 2008.
The stone was eventually recut to maximize the depth of its color, brighten its hue, and improve its shaped, resulting in what’s now being presented as The Golden Canary.
The GIA had this to say about the stone, post-recutting: “The re-cut of the Incomparable to the current 303.10-carat pear modified brilliant is to look at the diamond as new; a re-creation bringing to bear the advances in technology, computer modeling, and visual evaluation available today. Everything from the orientation of the stone to its shape and cutting style has been considered.”
The Golden Canary will go up for auction during the Sotheby’s Magnificent Jewels auction in New York on Dec. 7.
It’s estimated to sell for more than $15 million but will be offered without reserve, meaning there is no minimum price the seller is willing to accept for the stone.
The diamond will be showcased on a worldwide tour, starting this week in Sotheby’s galleries in Dubai, followed by cities including Taipei, Geneva, and Hong Kong.
“We have had an exceptional year of presenting extraordinary colored diamonds at our global jewelry auctions, as the demand and appetite for these rarities continues to grow. Just two weeks after the record-breaking sale of the Williamson Pink Star for $57.7 million, we are honored to offer the largest polished diamond in present existence to appear at auction,” said Quig Bruning, head of jewelry for Sotheby’s Americas.
“Steeped in history, The Golden Canary is one of the most exquisite diamonds to ever be discovered, not only for its sheer size and intensity in color, but for its stunning beauty that is sure to captivate collectors around the world. Sotheby’s is privileged to help write the next chapter for this incomparable, reborn gem.”
The Latest

In a 6-3 ruling, the court said the president exceeded his authority when imposing sweeping tariffs under IEEPA.

Smith encourages salespeople to ask customers questions that elicit the release of oxytocin, the brain’s “feel-good” chemical.

JVC also announced the election of five new board members.

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

The brooch, our Piece of the Week, shows the chromatic spectrum through a holographic coating on rock crystal.


Raised in an orphanage, Bailey was 18 when she met her husband, Clyde. They opened their North Carolina jewelry store in 1948.

Material Good is celebrating its 10th anniversary as it opens its new store in the Back Bay neighborhood of Boston.

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

The show will be held March 26-30 at the Miami Beach Convention Center.

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.

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.
![A peridot [left] and sapphires from Tanzania from Anza Gems, a wholesaler that partners with artisanal mining communities in East Africa Anza gems](https://uploads.nationaljeweler.com/uploads/cdd3962e9427ff45f69b31e06baf830d.jpg)
Although the market is robust, tariffs and precious metal prices are impacting the industry, Stuart Robertson and Brecken Branstrator said.

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 AGTA Spectrum and Cutting Edge “Buyer’s Choice” award winners were announced at the Spectrum Awards Gala last week.

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.























