Sourcing

Lucara CEO Eira Thomas Replaced by William Lamb

SourcingAug 15, 2023

Lucara CEO Eira Thomas Replaced by William Lamb

The move comes after news surfaced that the Karowe mine’s underground expansion will take longer and cost more than expected.

Eira Thomas
Eira Thomas, pictured in a 2018 file photo, is out as president and CEO of mining company Lucara Diamond Corp. and replaced by former Lucara CEO William Lamb, who led the company from 2011-2018.
Vancouver, British Columbia—The board of Lucara Diamond Corp. announced it is appointing William Lamb president and CEO, replacing the diamond mining company’s co-founder, Eira Thomas.

Thomas started Lucara in 2007 with Swedish-Canadian billionaire Lukas Lundin and friend and mining executive Catherine McLeod-Seltzer after contributing to the discovery of the pipes that became the Diavik Diamond Mine in Canada.

One of the few women chief executives in the largely male-dominated world of mining, Thomas had headed Lucara as president and CEO since 2018.

In a statement released late Monday, Lucara said Thomas has been “integral” to the success of the development and success of the company’s key—and only active—asset, the Karowe mine in Botswana.

It said: “The board would like to acknowledge the special contributions Eira has made over her many years of involvement with Lucara in her capacity as a director, and specifically over the last five years as CEO,” noting her spearheading of the company’s innovative sales agreement with manufacturer HB Antwerp and leading the commercialization of its digital sales platform, Clara. 

“More recently under Ms. Thomas’ leadership, the Karowe Mine achieved peak operational performance and she and her team arranged for a senior secured project financing debt package of $220 million enabling the underground expansion to advance.”

While Thomas was integral to securing funding to take Karowe underground, the company recently announced the underground project will take longer and cost more than originally estimated. 

 Related stories will be right here … 

Her replacement, Lamb, served as Lucara CEO from May 2011 to February 2018 and oversaw the construction of the original Karowe mine and its facilities.

He also was head at Lucara when the miner discovered and sold the 1,109-carat “Lesedi La Rona” diamond, which Graff Diamonds bought for $53 million in 2017.

The company said his experience is “ideally suited to advancing the company’s key underground project to a successful completion.”  

Lamb has been working in mining project development and operations for 25 years.

Prior to heading Lucara, he spent a decade at De Beers, working for six of those as a process plant manager for De Beers Canada, and has served on the boards of several public mining companies. 

The company confirmed that his appointment is effective immediately. 

The Latest

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.

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.

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.

Weekly QuizJan 15, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
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.

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.

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.

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.

Burnell’s Fine Jewelry Kristi Regan, Nathan Regan, Sean Hamlin, Erin Carson
IndependentsJan 14, 2026
Kansas Jeweler Wins 2025 ‘Wag’ Award

Edge Retail Academy honored Burnell’s Fine Jewelry in Wichita, Kansas, with its annual award for business excellence.

National Jeweler columnist Sherry Smith, vice president of coaching strategy and development at the Edge Retail Academy
ColumnistsJan 13, 2026
2025 Was a ‘Price Up, Units Down’ Year, Here’s What That Signals for 2026

In a market defined by more selective consumers, Sherry Smith shares why execution will be independent jewelers’ key to growth this year.

Orr’s Jewelers David Gordon, Marcia Gordon, Aliza Gordon, Leslie Gordon
IndependentsJan 13, 2026
Orr’s Jewelers Opens New Location in Pittsburgh’s Strip District

The family-owned jeweler’s new space is in a former wholesale produce market.

Stock image of a gavel and books
CrimeJan 13, 2026
Alleged Getaway Driver Charged in Florida Jewelry Store Robbery

Ivel Sanchez Rivera, 52, has been arrested and charged in connection with the armed robbery of Tio Jewelers in Cape Coral, Florida.

Hana Kaneko rings
Events & AwardsJan 13, 2026
NYC Jewelry, Antique, & Object Show Announces Winter Event

The new show will take place Jan. 23-25, 2026.

MNQ FINAL - NJ web - 1872 x 1052 px.png
PodcastsJan 12, 2026
Introducing My Next Question, the Podcast

A monthly podcast series for jewelry professionals

Lisa Manobal, Priyanka Chopra Jonas
EditorsJan 12, 2026
Platinum, White Gold Rule the 2026 Golden Globes

Associate Editor Natalie Francisco highlights her favorite jewelry moments from the Golden Globes, and they are (mostly) white hot.

Peter Yanzter, former executive director of AGS Labs
GradingJan 12, 2026
Peter Yantzer, Former Executive Director of AGS Labs, Dies at 77

Yantzer is remembered for the profound influence he had on diamond cut grading as well as his contagious smile and quick wit.

Macy’s New York Herald Square
MajorsJan 12, 2026
These 14 Macy’s Locations Will Close This Year

The store closures are part of the retailer’s “Bold New Chapter” turnaround plan.

Jewelers Mutual logo
MajorsJan 12, 2026
Jewelers Mutual Acquires AI-Powered Event Insurance Program

Through EventGuard, the company will offer event liability and cancellation insurance, including wedding coverage.

Kendra Scott CEO Chris Blakeslee
MajorsJan 09, 2026
Kendra Scott Taps Activewear Exec as CEO

Chris Blakeslee has experience at Athleta and Alo Yoga. Kendra Scott will remain on board as executive chair and chief visionary officer.

Wrapped holiday present boxes
SurveysJan 09, 2026
U.S. Holiday Retail Sales Up 4%, Visa, Mastercard Say

The credit card companies’ surveys examined where consumers shopped, what they bought, and what they valued this holiday season.

Christie’s Kimberly Miller
AuctionsJan 09, 2026
Christie’s Names New Global Managing Director for Luxury

Kimberly Miller has been promoted to the role.

Lionheart Serenity Opal Amulet Charm
CollectionsJan 09, 2026
Piece of the Week: Lionheart’s ‘Serenity’ Opal Charm

The “Serenity” charm set with 13 opals is a modern amulet offering protection, guidance, and intention, 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