Sourcing

Rio Tinto Opens New Diamond Pipe at Diavik

SourcingAug 22, 2018

Rio Tinto Opens New Diamond Pipe at Diavik

The diamond mining news comes after a four-year construction period and $350 million investment.

2016_Diavik-Foxfire.jpg
The Diavik diamond mine produced this 187.7-carat rough diamond; it is the largest diamond ever found in North America. This week, Rio Tinto announced the opening of a fourth pipe at the mine that it says will be an important source of supply for the next four years.

London—In its latest diamond mining news, Rio Tinto has announced the opening of a fourth diamond pipe at the subarctic Diavik mine in Canada’s Northwest Territories.

The new open-pit pipe, known as A21, will be an important source for incremental supply for the next four years, the company said, so it is able to sustain production levels at the site.

The pipe is adjacent to Diavik’s existing mining operations at Lac de Gras.

The first ore from the site was delivered in March, and the pit is expected to be at full production during the fourth quarter of 2018.

This follows a four-year construction period and investment of about $350 million from Rio Tinto and joint venture partner Dominion Diamond Corporation, which Rio Tinto Copper & Diamonds CEO Arnaud Soirat said reflects the “strong outlook” they see for the diamond industry.

“It is a remarkable achievement to deliver this project safely and ahead of time in such a challenging environment, positioning Diavik to continue meeting the demand for its outstanding diamonds,” he said.

The company celebrated the opening of A21 at an event held Monday, with Wally Schumann, Minister of Industry, Tourism and Investment with the Government of the Northwest Territories, as the guest of honor. Also in attendance were indigenous community representatives, joint venture partners and Rio Tinto employees.

The Diavik diamond mine is located 300 kilometers (about 186 miles) northeast of Yellowknife, the capital of Canada’s Northwest Territories. It began production in 2003 and has been a fully underground mining operation since 2012, producing predominantly gem-quality diamonds.

Brecken Branstratoris the senior editor, gemstones at National Jeweler, covering sourcing, pricing and other developments in the colored stone sector.

The Latest

Graphic for Episode 6 of My Next Question featuring Michelle Orman
PodcastsJun 17, 2026
Episode 6: Las Vegas 2026-Trends, Traffic, Broken Bathrooms

Couture’s Michelle Orman joins Amanda Gizzi and Michelle Graff for this special post-Market Week episode of My Next Question.

SSEF emerald with filler
GradingJun 17, 2026
SSEF Issues Warning on Refilled Emeralds

The lab is seeing emeralds with filler added post-testing enter the market, accompanied by reports that indicate little to no treatment.

Former Patek Philippe President Philippe Stern
WatchesJun 17, 2026
Patek Philippe’s ‘Visionary’ Leader Philippe Stern Dies at 88

The third generation of the Stern family to head Patek Philippe, he navigated the “quartz crisis” and preserved the brand’s independence.

Brought-To-By-Article-Top-Image.jpg
Brought to you by
Wedding Band Trends 2026: Personalization Takes Center Stage

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

James Avery Schertz Texas storefront
MajorsJun 17, 2026
James Avery to Revamp In-Store Retail Experience

The Texas-based jeweler is gradually rolling out a new experience-forward layout in its stores.

Weekly QuizJun 11, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Seattle Seahawks Championship Ring by Jason of Beverly Hills
MajorsJun 17, 2026
Seahawks’ Super Bowl Ring Blends Meaningful Design, Technical Craftsmanship

The Super Bowl LX champions were honored with diamond and blue sapphire rings by Jason of Beverly Hills.

Marianna Smirnova
Policies & IssuesJun 17, 2026
Community for Ethical Jewelry Names New Executive Director

Marianna Smirnova previously spent a decade working with the Responsible Minerals Initiative, in addition to other relevant roles.

DCA-NJ-article-1872x1052-060826.jpg
Brought to you by
Building the Future of Jewelry Retail: DCA Expands Education, Leadership Development, and Workforce Solutions

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

NBA Larry O'Brien Trophy
MajorsJun 16, 2026
5 Things to Know About the 2026 NBA Championship Trophy

The New York Knicks took home the Larry O'Brien Trophy crafted by Tiffany & Co.

Lionheart Cactus Pendant
TrendsJun 16, 2026
Post-Vegas Jewelry Trend Report: Big Beads, Western Flair, White Metals

Associate Editor Natalie Francisco lists the trends she spotted during Jewelry Market Week that will dominate the second half of 2026.

Alicia Arnold
MajorsJun 16, 2026
Sasha Primak Hires New Design Director

The manufacturer has tapped Alicia Arnold, the former director of custom design at Tiny Jewel Box.

Boulle family in hard hats
IndependentsJun 15, 2026
DeBoulle Diamond & Jewelry to Renovate Dallas Flagship

The revamped, elevated space will feature a two-story Patek Philippe atelier and a rooftop patio for parties.

G Shock Coca Cola
WatchesJun 15, 2026
G-Shock, Coca-Cola Partner on Bottle-Inspired Watch

The special-edition piece marks the 140th anniversary of the iconic beverage brand.

Buddha Mama earrings
TrendsJun 15, 2026
Amanda’s Style File: Tiny Charms Are Trending

Here are 13 small charms to inspire your layered looks this summer.

16th century flower cluster hogback diamond ring
AuctionsJun 12, 2026
16th-Century ‘Hogback’ Diamond Ring Going Up for Auction in London

Found by a metal detectorist, the ring likely belonged to a wealthy, possibly royal, owner, said Noonans.

Chouette Designs Margaux Ring
CollectionsJun 12, 2026
Chouette Designs To Launch Collection Celebrating All Types of Love

Our Pride Month Piece of the Week, the “Margaux” ring, is part of the wife-and-wife team’s new “Lovestoned” collection.

CBG logo
Events & AwardsJun 12, 2026
CBG Announces Plans for Phoenix Show

The group has named the keynote speaker and announced a new pavilion for its next event, which is slated for September.

A selection of animal jewelry
EditorsJun 11, 2026
This Was the Best Animal Jewelry in Las Vegas

From lions and hippos to snails and fish, Senior Editor Lenore Fedow wrangles her picks for cutest jewelry critters in Las Vegas.

Marie-Laure Cérède
MajorsJun 11, 2026
Former Cartier Creative Director To Head Chanel’s Jewelry Creation Studio

Marie-Laure Cérède will join Chanel as the new director of its jewelry creation studio, starting in October.

Smiling Rocks booth at JCK Las Vegas 2026
Lab-GrownJun 11, 2026
Smiling Rocks’ ‘Wish Jar’ Generates 100+ Wishes in Las Vegas

At the JCK show, the lab-grown diamond brand teamed up with Jewelers for Children to support Make-A-Wish India.

Ilana McCabe
SourcingJun 11, 2026
Signet Jewelers Exec Joins Diamonds Do Good Board

Ilana McCabe is Signet’s vice president of public relations and brand communications.

Azure blue diamond and 5.04-carat fancy vivid blue diamond
AuctionsJun 10, 2026
31.62-Carat ‘Azure Blue’ Diamond Sells For $8M+ at Christie’s

It was a banner day for blue gemstones, with another blue diamond topping $8 million and a 41-carat sapphire going for $2.3 million.

Saks Fifth Avenue New York City storefront
MajorsJun 10, 2026
Saks Global Receives Bankruptcy Court Approval for Reorganization

The approval means the retailer is on track to exit bankruptcy proceedings this summer.

Jalen Javon Davis and Leslie La Vun Jones II
CrimeJun 10, 2026
2 Suspects Arrested in Texas Jewelry Store Robbery

The men are believed to be part of the group of several masked suspects that robbed Marc Robinson Jewelers in April.

Sylvie Levine wearing engagement ring
CollectionsJun 10, 2026
Sylvie Debuts ‘Elevated’ Bridal Collection Inspired By Designer’s Ring

The bridal-focused brand is also launching its Custom Atelier this summer, a digital custom design tool for its authorized retailers.

De Beers Group CEO Al Cook
EditorsJun 09, 2026
Q&A: Al Cook on the Lab-Grown ‘Bubble,’ Dwindling Diamond Supply

The De Beers Group CEO also discussed tariffs, Desert Diamonds, and the pending sale of De Beers in an interview with Michelle Graff.

Russ Whitehouse
MajorsJun 09, 2026
Wilkerson's Russ Whitehouse Retires

The industry veteran is bringing his 56-year run in the fine jewelry sector to an end.

×

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