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

Stock image of gavel
CrimeDec 24, 2025
LA Jewelry District Couple Pleads Guilty to Hiding Millions from IRS

The couple pleaded guilty to concealing at least $127 million in cash transactions at its precious metals businesses.

People shopping in winter clothes
SurveysDec 24, 2025
Consumer Confidence Falls Again in December

Consumers shared concerns about prices, inflation, tariffs, trade, and politics in the survey’s write-in response section.

Bonhams US headquarters
AuctionsDec 24, 2025
Bonhams to Open New U.S. Flagship in NYC

In February 2026, the auction house will move its headquarters to the former Steinway Hall, a neoclassical landmark on Billionaires’ Row.

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.

Hana Kaneko rings
Events & AwardsDec 24, 2025
NYC Jewelry, Antique, & Object Show Announces Winter Event

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

Weekly QuizDec 23, 2025
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Costume Designers Guild Award By Bulgari
Events & AwardsDec 23, 2025
Bulgari Reimagines Costume Designers Guild Award

The LVMH-owned brand has partnered with the costume design union to revamp its award for 2026.

Kering logo
MajorsDec 23, 2025
Kering to Acquire Stake in Raselli Franco Group

The luxury titan inked a deal to acquire an initial minority stake in the jewelry manufacturer with a pathway to full ownership by 2032.

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.

For Future Reference Vintage
MajorsDec 23, 2025
For Future Reference Vintage Enters Bloomingdale’s

The company’s curation of unsigned vintage and estate jewelry debuted at the Bloomingdale’s in Costa Mesa, California.

Counterfeit Cartier and Audemars Piguet watches
CrimeDec 22, 2025
Customs Seizes Hundreds of Fake Rolex, Cartier Watches

In the recent multi-shipment seizure, CBP also found counterfeit Audemars Piguet, Moncler, and Chrome Hearts items.

Helzberg new store concept rendering
EditorsDec 22, 2025
How Helzberg Is Reimagining Its Stores

Helzberg’s Chief Retail Officer Mitch Maggart shared details about its tests of a new store concept rooted in an elevated luxury experience.

Graphic for the 2025 Year-End Webinar
Recorded WebinarsDec 22, 2025
2025 Jewelry Rewind: Looking Back on an Eventful Year

Jewelers of America execs and National Jeweler editors discuss tariffs, the sky-high gold price, and the engagement that broke the internet.

Pair of Ippolita Lollatini earrings
MajorsDec 19, 2025
MadaLuxe Group Acquires Ippolita

The luxury goods company said founder Ippolita Rostagno will remain at the brand’s helm.

Bulgari CEO Laura Burdese
MajorsDec 19, 2025
LVMH Names New Bulgari CEO

Laura Burdese, who joined the Italian luxury brand in 2022, will take on the role in July.

Harwell Godfrey Lil Buddies
EditorsDec 19, 2025
2025 Jewelry Superlatives: A Yearbook-Style Year in Review

The National Jeweler editors revisit the most noteworthy industry happenings and design trends from 2025.

Front of Jean Schlumberger’s ‘African Cat’ brooch
AuctionsDec 19, 2025
Jean Schlumberger’s ‘African Cat’ Is Purr-Fection

Need a gift for the cat lover who has everything? Look no further than our latest Piece of the Week.

Audemars Piguet Grosse Pièce
AuctionsDec 18, 2025
Audemars Piguet Reclaims Historic Pocket Watch at Auction

It purchased the “Grosse Pièce,” an ultra-complicated Audemars Piguet pocket watch from the ‘20s, for a record-breaking price at Sotheby’s.

Diamond ring in parts
Lab-GrownDec 18, 2025
Kira Jewels Debuts Custom Lab-Grown Diamond Jewelry Service

The lab-grown diamond grower now offers custom engagement and fashion jewelry through its Kira Custom Lab Jewelry service.

Terry and Cindy Chandler at AGS Conclave
EditorsDec 18, 2025
Terry Chandler Looks Back on 40 Years of Opportunity, Change, and Friends

Chandler got his start at Michelson Jewelers and has served as DCA president and CEO since 2001. He will retire at the end of the month.

Rendering of Bob’s Watches JFK airport store
WatchesDec 18, 2025
Bob’s Watches to Open Store in New York’s JFK Airport

The boutique is slated to open this week inside Terminal 8, offering pre-owned Rolex watches and more to international travelers.

JamAlert 1872x1052.png
Supplier BulletinDec 18, 2025
Cell Jammers Are Targeting Your Business. Here's How to Beat Them

Sponsored by Digital Monitoring Products

Fabergé egg pendant near gloved hand
CrimeDec 17, 2025
Man Pleads Not Guilty to Swallowing Fabergé Pendant

The special-edition egg pendant ingested in a New Zealand jewelry store was recovered after a six-day wait.

Ashley Zhang Jewelry Snake Necklace, Renato Cipullo Hematite Blaze Necklace, Vanessa Fernandez Studio Curva Wrap Hoops, Hernsdorf Tears of Aphrodite Necklace, Robinson Pelham Tsar Star Earrings, Marla Aaron Nymphenburg Lock, Lof The Valentine Ring
EditorsDec 17, 2025
2025 Jewelry Rewind: The Best Piece of the Week Picks

Associate Editor Natalie Francisco plays favorites with Piece of the Week, selecting a standout piece of jewelry from each month of 2025.

Lucy Hale in Jacquie Aiche’s Love and Desire Campaign
CollectionsDec 17, 2025
Lucy Hale Stars in Jacquie Aiche’s Holiday Campaign

The “Love and Desire” campaign is inspired by the magic that follows when one’s heart leads the way, said the brand.

SSEF logo
GradingDec 17, 2025
SSEF Announces 2025 Scholarship Winners

Two awardees will receive free tuition for an educational course at the Swiss lab, with flights and lodging included.

Pandora Alexander Lacik and Berta de Pablos-Barbier
MajorsDec 16, 2025
Pandora’s New CEO Will Step Up Early

Berta de Pablos-Barbier will replace Alexander Lacik at the start of January, two months earlier than expected.

JAR pendant brooch, fancy intense blue diamond
AuctionsDec 16, 2025
Suzanne Belperron, JAR Shine in Sotheby’s First Auctions at New HQ

Sotheby’s held its first two jewelry sales at the Breuer building last week, and they totaled nearly $44 million.

×

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