Sourcing

Take a Peek at the Largest Diamond Found in North America

SourcingDec 19, 2018

Take a Peek at the Largest Diamond Found in North America

The 552.74-carat yellow was discovered at the Diavik mine in Canada’s Northwest Territories.

20181219_552carat.jpg
The Diavik mine in Canada’s Northwest Territories has set the record for largest diamond recovered in North America with this 552-carat stone. It also yielded the previous record-holder, the 187-carat Foxfire diamond.
New York—Dominion Diamond Mines has announced the recovery of the largest gem-quality diamond on record in North America.

The whopping 552.74-carat yellow CanadaMark diamond was recovered at the Diavik mine in Canada’s Northwest Territories in October.

Diavik is approximately 135 miles south of the Arctic Circle and also yielded the previous record holding stone for largest discovered on the continent, the 187.7-carat Foxfire diamond, unearthed in 2015.

Polished, the Foxfire yielded a 37.87-carat and 36.80-carat brilliant-cut pear shape diamond that went for $1.3 million at auction.

The CanadaMark yellow measures 33.74 millimeters by 54.56 millimeters and was found by miners during Diavik’s recovery plant’s initial screening process.

Marked heavily with abrasions, Dominion said that it won’t sell the stone in its rough form but will partner with a master cutter to cut and polish it.

“This incredible discovery showcases what is truly spectacular about CanadaMark diamonds,” said Dominion Diamond Mines Chairman Kyle Washington.

“The color and texture of the diamond are a unique example of the journey that natural diamonds take from their formation until we unearth them. Our Diavik mine has produced some of the most beautiful diamonds in the world, and this one certainly tops the list.”

Dominion Diamond Mines owns a 40 percent share of Diavik; Rio Tinto owns the remainder. Production started at the mine in 2003 and is expected to operate through 2025.

Last summer, miners opened a fourth pipe at Diavik, the A21.

Dominion also is the owner of the CanadaMark diamond brand.
Ashley Davisis the senior editor, fashion at National Jeweler, covering all things related to design, style and trends.

The Latest

Margaret “Maggie” Hoisik
IndependentsNov 25, 2025
Pearl Stringer Margaret Hoisik Dies

She is remembered as an artist who loved her craft and was devoted to her faith, her friends, and her family.

State Property Toadstool Pendant
TrendsNov 25, 2025
Amanda’s Style File: Polka Dots

The polka dot pattern transcends time and has re-emerged as a trend in jewelry through round-shaped gemstones.

Stock image of gavel and books
CrimeNov 25, 2025
Former Arizona AG Official Charged With Trafficking Stolen Jewelry

Vanessa Hickman, 49, allegedly sold a diamond bracelet that was mistakenly sent to her home.

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.

GIA executives John Koivula, Kathryn Kimmel, Susan Jacques, Tom Moses, Alice Keller, James E. Shigley
Events & AwardsNov 25, 2025
GIA Awards Susan Jacques With Its Highest Honor

GIA’s former president and CEO was presented with the Richard T. Liddicoat Award for Distinguished Achievement.

Weekly QuizNov 20, 2025
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
20251124_MNQ social media etiquette header.jpg
Recorded WebinarsNov 24, 2025
Watch: Top Tips for Social Media Etiquette

Social media experts spoke about protecting brand reputation through behaving mindfully online.

Breitling house of brands
WatchesNov 24, 2025
Breitling Reveals Plans for Gallet, Universal Genève

In 2026, the three will come together as “House of Brands,” with Gallet sold in Breitling stores and Universal Genève sold separately.

roseco-catalog.png
Brought to you by
Roseco Releases New Full-Line Catalog

Roseco’s 704-page catalog showcases new lab-grown diamonds, findings, tools & more—available in print or interactive digital editions.

Cynthia Erivo in Muse’s Have a Heart x Cynthia Erivo Collection
CollectionsNov 24, 2025
Muse Debuts a Wicked 'Have a Heart x Cynthia Erivo' Sequel

The second drop, which includes more Elphaba-inspired pieces from additional designers, will continue to benefit nonprofit Dreams of Hope.

J.R. Dunn Jewelers employees
IndependentsNov 24, 2025
J.R. Dunn Jewelers Names New President

Second-generation jeweler Sean Dunn has taken on the role.

Amber Pepper
MajorsNov 21, 2025
Natural Diamond Council Names New CEO

Amber Pepper’s main focus will be on digital innovation and engaging younger consumers.

Melissa Kaye Rocky Infinity Emerald Necklace
CollectionsNov 21, 2025
Piece of the Week: Melissa Kaye’s ‘Rocky Infinity’ Necklace

The lariat necklace features a 4.88-carat oval-cut Zambian emerald in 18-karat yellow gold.

Phillips auction of The Vanderbilt Sapphire brooch
AuctionsNov 20, 2025
Vanderbilt Jewels Shine at Phillips Sale, Pink Diamond Withdrawn

A 43-carat sapphire brooch from the Vanderbilt collection was the top lot of the Geneva sale.

Rebecca Rau Jewels Green Flame Necklace
CollectionsNov 20, 2025
Rebecca Rau Jewels Debuts With ‘Then & Now’ Collection

Rau is a fourth-generation art and antique dealer from M.S. Rau gallery whose first jewelry collection merges artifacts with modern design.

Purvi Shah
Policies & IssuesNov 20, 2025
RJC Names New Executive Director

Former De Beers sustainability leader Purvi Shah will take over the role in February 2026.

La Joux-Perret manufacturing facility in La Chaux-de-Fonds, Switzerland
WatchesNov 20, 2025
LVMH Takes Minority Stake in Citizen Group-Owned Movement Maker

La Joux-Perret is based in La Chaux-de-Fonds, Switzerland, and makes solar quartz as well as mechanical watch movements.

Julia Griffith
GradingNov 20, 2025
Julia Griffith Joins SSEF as Head of Education

She previously taught at Gem-A and is the founder of The Gem Academy.

Helena Bonham Carter in Larkspur & Hawk Once Upon a Time Campaign
CollectionsNov 19, 2025
Larkspur & Hawk Celebrates 25 Years With Helena Bonham Carter Campaign

The British actress and her daughter modeled pieces from the brand’s new “Palette” capsule for its “Once Upon a Time” holiday campaign.

Google reviews on a phone screen and a laptop
TechnologyNov 19, 2025
Google Has a New Form for Reporting ‘Review Bombing’ Attacks

Plus, the tech giant shares the steps retailers should take if they believe they’re a victim of a review extortion scam.

Shaftel Diamonds logo and jeweler’s bench
IndependentsNov 19, 2025
Houston Jeweler Keith Shaftel Retires, Next Generation Steps In

Danny and Gaby Shaftel are now Shaftel Diamonds’ CEO and chief operating officer, respectively.

Midas chain mini studs
TrendsNov 19, 2025
Midas Chain Releases 2025 Holiday Style Guide

The jewelry manufacturer’s seasonal offering features its new “Melodie” bangles, as well as mini stud earrings and layering pieces.

Jewelry from NYC Jewelry Week 2024
Events & AwardsNov 18, 2025
NYC Jewelry Week 2025: 12 Must-See Events

With more than 140 activations taking place in New York City now through Nov. 23, these 12 events are can’t-miss moments.

Lugano Diamonds Greenwich Connecticut store
MajorsNov 18, 2025
Lugano Diamonds Files for Bankruptcy, Looking for Buyer

The Chapter 11 filing follows the resignation of CEO Moti Ferder, who stepped down after an investigation into the company’s finances.

Kathleen Ryan Dreamhouse Bad Fruit sculpture
Events & AwardsNov 18, 2025
A Giant, Bejeweled Moldy Berry Is on Display in LA

The artwork is part of an exhibition featuring works by Kathleen Ryan, an artist known for her gemstone-studded rotting fruit sculptures.

Rough diamonds from the Gahcho Kué mine in Canada
SourcingNov 18, 2025
Another Diamond Company CEO Steps Down

Mark Wall, president and CEO of Canadian mining company Mountain Province Diamonds, will vacate his position next month.

Suspects in murder of father and son jewelers in Chicago
CrimeNov 17, 2025
Police Searching for 2 Suspects in Murder of Father, Son Jewelers

Faustino Alamo Dominguez and his son, 25-year-old Luis Angel Alamo, were gunned down following an armed robbery at their jewelry store.

Jeffrey Bennett
GradingNov 17, 2025
IGI Announces New President of North America

Tiffany & Co. veteran Jeffrey Bennett has stepped into the role.

×

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