Sourcing

50-Carat Diamond Found at New Mine

SourcingOct 27, 2016

50-Carat Diamond Found at New Mine

It is the largest diamond recovered since production began at Gahcho Kué, the new mine in Canada operated by De Beers and Mountain Province Diamonds.

20161027_GahchoKue.jpg
This rough diamond, which weighs more than 50 carats and is seen here next to a Canadian dime, is the largest to be recovered at Gahcho Kué since ramp-up production began in August.

New York--Mountain Province Diamonds has announced the recovery of a 50.25-carat gem-quality diamond at the Gahcho Kué mine in Canada’s Northwest Territories.

It is the largest stone found since ramp-up production began at the mine on Aug. 1.

Mountain Province also retrieved three fancy yellow diamonds weighing between 3 and 5 carats each.

“The 50-carat diamond recovered in September is the largest diamond recovered to date and provides further confirmation that the Gahcho Kué has a population of large, high-quality gem diamonds,” said Mountain Province President and CEO Patrick Evans.

He continued, “It is also exciting to see a population of good-size fancy yellow diamonds, which offers encouragement that we’ll see further fancy diamonds as the production ramps up.”

Mountain Province controls 49 percent of the mine, with De Beers controlling 51 percent. The companies bid on fancy color and special diamonds, classified as those that weigh above 10.8-carats, on a monthly basis.

De Beers won the August production and Mountain Province won September.

Mountain Province will sell the 50-carat diamond and fancy yellow diamonds at its first open tender in Antwerp in January, where it will also offer its 49 percent share of run-of-mine production. After that, the company expects to hold open tenders every five weeks.

Gahcho Kué has produced 198,000 carats in the production period from Aug. 1 to Sept. 30, 97,000 of which belong to Mountain Province.
Ashley Davisis the senior editor, fashion at National Jeweler, covering all things related to design, style and trends.

The Latest

National-Jeweler_1872x1502_B copy.png
Supplier BulletinJan 22, 2026
The Rise of Centralized Sourcing in the Colored Gemstone Market

Sponsored by RapNet

Lugano Diamonds Greenwich Connecticut store
MajorsJan 22, 2026
Lugano Diamonds Finds a Buyer

Investment firm Enhanced Retail Funding, a division of Gordon Brothers, was the successful bidder.

Sindhu Culas
MajorsJan 22, 2026
Swarovski Appoints New North America President

Retail veteran Sindhu Culas has stepped into the role.

JamAlert 1872x1052.png
Brought to you by
How Jewelers Can Fight Back Against Cell Jammers

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

Taylor Burgess
MajorsJan 22, 2026
Stuller Names New Chief Merchandising, Marketing, Sales Officer

Taylor Burgess, who has been at Stuller since 2013, was promoted to the newly created role.

Weekly QuizJan 22, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
My Next Question podcast with Sherry Smith and Edahn Golan
PodcastsJan 21, 2026
Episode 1: High Gold Prices, the Diamond Dilemma, & What’s Next

Was 2025 a good year for jewelers? Did lab-grown diamonds outsell natural? Find out on the first episode of the “My Next Question” podcast.

Jules Kim of Bijules, Sophie Howard of By Pariah, Jade Ruzzo, Joy Haugaard of Lionheart, Vanessa Fernández of Vanessa Fernández Studio, Hiba Husayni of Zahn-Z
EditorsJan 21, 2026
6 Jewelry Designers Poised to Have a Breakout Year in 2026

Whether you recognize their jewels or are just discovering them now, these designers’ talent and vision make them ones to watch this year.

Recipients Collage 2025 - NJ (1872 x 1050 px) (1872 x 1052 px).png
Brought to you by
Impacting Tomorrow Today

How Jewelers of America’s 20 Under 40 are leading to ensure a brighter future for the jewelry industry.

Gavel and books stock image
CrimeJan 21, 2026
4 Men Charged in $1.7M California Smash-and-Grab Jewelry Store Robbery

Plus, JSA’s Scott Guginsky discusses the need for jewelers to take more precautions as the gold price continues to climb.

Felice Korr Morris
IndependentsJan 21, 2026
Delaware Jeweler Felice Morris Dies at 91

Morris’ most cherished role was being a mother and grandmother, her family said.

Bulgari Vimini Collection Campaign
CollectionsJan 21, 2026
Bulgari Weaves New Collection of ‘Vimini’ Creations

“Vimini” is the first chapter of the “Bulgari Eternal” collection that merges archival pieces with modern creations.

The Ritz-Carlton Half Moon Bay California
Events & AwardsJan 21, 2026
Jewelers Mutual’s ‘Conversations’ Retreat Returns to Discuss AI

The third edition will be held in Half Moon Bay, California, in April.

Hiba Husayni, Jules Kim, Johnny Nelson, Dorian Webb, Lorraine West
Events & AwardsJan 20, 2026
These Are the 5 Finalists for the David Yurman Gem Awards Grant

The grant is in its first year and was created to recognize an exceptional fine jewelry designer whose star is on the rise.

Emmanuel Raheb, National Jeweler columnist and CEO of Smart Age Solutions
ColumnistsJan 20, 2026
First-Party Data Is the Most Valuable Asset Jewelers Have in 2026

Data built on trust, not tracking, will be key to success going forward, as the era of “borrowed attention” ends, Emmanuel Raheb writes.

Heath Yarges
MajorsJan 20, 2026
Borsheims Hires New Assistant Facilities Manager

Heath Yarges brings two decades of experience to the role.

Peter Yantzer at a diamond cutting machine
EditorsJan 16, 2026
Remembering Pete Yantzer for His Contributions and His Kindness

Pete’s boundless curiosity extended beyond diamond cut and he was always eager to share his knowledge with others, no matter the topic.

Buccellati Opera Tulle ring
FinancialsJan 16, 2026
Richemont’s Jewelry Brands Shine in Q3

Cartier, Van Cleef & Arpels, Buccellati, and Vhernier had another successful holiday season, Richemont reported this week.

Lagos SML High Jewelry Bee Brooch
TrendsJan 16, 2026
Diane Lane's Brooch Buzzes at the 2026 Golden Globes

Our Piece of the Week is Lagos’ “Bee” brooch that was seen on the red carpet for the first time on Sunday.

Gavel
CrimeJan 15, 2026
D.C. Rapper ‘Taliban Glizzy’ Sentenced to 18+ Years for Jewelry Store Robberies

Trevor Jonathan Wright led a crew in a string of armed robberies targeting South Asian-owned jewelry stores on the East Coast.

Jewelers of America 20 Under 40 Program
Events & AwardsJan 15, 2026
Jewelers of Americas’ ‘20 Under 40’ Nominations Now Open

The program recognizes rising professionals in the jewelry industry.

The Venetian Expo Las Vegas
Events & AwardsJan 15, 2026
Registration for JCK Las Vegas 2026 Is Now Open

A new lifestyle section and a watch showcase have been added to this year’s event.

Avocados From Mexico Golden Double Dip Chip
TrendsJan 15, 2026
Don’t Double-Dip With This Golden Chip

Avocados From Mexico is celebrating those who love to double-dip in game day guacamole with a 14-karat yellow gold tortilla chip necklace.

41.82-carat rough blue diamond recovered from the Cullinan Mine
SourcingJan 15, 2026
Nearly 42-Carat Blue Diamond Discovered in South Africa

Petra Diamonds unearthed the 41.82-carat, Type IIb blue diamond at the Cullinan Mine.

Marie Lichtenberg Lasso Locket Bracelets Campaign
CollectionsJan 14, 2026
Marie Lichtenberg Lassos Leather for New Bracelets

The brand is trading its colorful fabric cords for Italian leather in its “Lasso” baby locket bracelets.

“My Next Question: The Podcast” graphic featuring Amanda Gizzi and Michelle Graff
TechnologyJan 14, 2026
“My Next Question” Enters Its Podcast Era

National Jeweler and Jewelers of America’s popular webinar series is evolving in 2026.

Saks New York City holiday lights
MajorsJan 14, 2026
Saks Files for Bankruptcy, Names New CEO

The department store chain owes millions to creditors like David Yurman, Roberto Coin, Kering, and LVMH.

Colman Domingo
CollectionsJan 14, 2026
Boucheron Names Colman Domingo as Brand Ambassador

The award-winning actor’s visionary approach and creativity echo the spirit of Boucheron, the brand said.

×

This site uses cookies to give you the best online experience. By continuing to use & browse this site, we assume you agree to our Privacy Policy