SourcingDec 08, 2021
De Beers Wants to Look for Diamonds in Angola SourcingDec 15, 2021
De Beers Names New Head for Operations in Canada, South Africa
Thembinkosi Moses Madondo joins the diamond company after 23 years with gold miner AngloGold Ashanti.
Thembinkosi Moses Madondo is the new managing director of De Beers Group Managed Operations. He joins the company from gold miner AngloGold Ashanti, where he has spent the last 23 years.
Johannesburg, South Africa—De Beers Group has appointed a new managing director for its Managed Operations unit, the arm of the company that oversees diamond mining operations in Canada and South Africa.
Thembinkosi Moses Madondo joins De Beers from gold mining company AngloGold Ashanti, where he served as senior vice president for innovation and technology.
Madondo is a mechanical engineer who has 23 years’ experience in the mining industry.
He started at AngloGold in 1998 and has held various senior positions and executive roles during this time, including engineering manager, process manager, general manager, and senior vice president.
Prior to his current role as SVP for innovation and technology, Madondo headed AngloGold Ashanti’s South Africa operations.
De Beers parent company Anglo American once held a stake in AngloGold Ashanti but sold off its remaining shares in 2009.
Related stories will be right here …
Thembinkosi Moses Madondo joins De Beers from gold mining company AngloGold Ashanti, where he served as senior vice president for innovation and technology.
Madondo is a mechanical engineer who has 23 years’ experience in the mining industry.
He started at AngloGold in 1998 and has held various senior positions and executive roles during this time, including engineering manager, process manager, general manager, and senior vice president.
Prior to his current role as SVP for innovation and technology, Madondo headed AngloGold Ashanti’s South Africa operations.
De Beers parent company Anglo American once held a stake in AngloGold Ashanti but sold off its remaining shares in 2009.
De Beers said Madondo has leadership experience and a proven track record of delivery, particularly when it comes to leading underground mining operations, and overseeing safe operations.
“He is the ideal candidate to lead our managed operations business as we continue the successful delivery of the $2 billion Venetia underground project in South Africa and maintain strong operational performance at Gahcho Kué mine in Canada,” De Beers CEO Bruce Cleaver said in a press release.
“His expertise will be essential as we continue to deliver the benefits of our FutureSmart Mining program, while ensuring we remain steadfast on our ambitious Building Forever sustainability commitments.”
Madondo holds a bachelor’s degree in mechanical engineering and an Executive Master of Business Administration from the University of Cape Town and has completed an Advanced Management Program through Harvard Business School.
He recently served on the Board of the Minerals Council South Africa and Rand Refinery Limited.
Madondo is slated to start at De Beers on Jan. 1, succeeding Nompumelelo “Mpumi” Zikalala, who, as previously announced, is leaving De Beers to become CEO of Anglo American’s Kumba Iron Ore business.
More on Sourcing
The Latest
ColumnistsJul 07, 2026
Peter Smith: Diamond Branding and the Origin ParadoxA podcast prompted Smith to share his views on where origin fits into the natural diamond story and the viability of branded diamonds.
Events & AwardsJul 07, 2026
JA Announces 2026 Impact Initiative RecipientsThe association selected eight recipients for the funding program, which is in its second year.
TrendsJul 07, 2026
Amanda’s Style File: Ruby, White and Blue Whether celebrating America’s 250th birthday or the USA’s World Cup run, July birthstone jewelry can double as a patriotic accessory.
Brought to you by
Wedding Band Trends 2026: Personalization Takes Center StageColored gemstones, artisan finishes, mixed metals, and meaningful details are shaping demand in bridal jewelry.
CrimeJul 07, 2026
Thieves Steal Millions in Jewels From France’s Musée LaliqueAround 20 pieces of jewelry were stolen from the museum dedicated to French jeweler and glassmaker René Lalique.
Weekly QuizJul 01, 2026
This Week’s QuizTest your jewelry news knowledge by answering these questions.
CollectionsJul 07, 2026
Robinson Pelham Is Partying Like It’s 1996The “Summer of ’96” campaign and collection celebrate the year the brand was founded for its 30th anniversary.
IndependentsJul 06, 2026
Bachendorf’s To Open Fifth Store In DallasThe new location is set to open this winter, featuring the retailer’s first rotating jewelry designer residency.
Brought to you by
Building the Future of Jewelry Retail: DCA Expands Education, Leadership Development, and Workforce SolutionsDCA is preparing the next generation of professionals by supporting workforce development, leadership growth, and career advancement.
MajorsJul 06, 2026
Graff Names BTS Star Jung Kook as New AmbassadorThe pop artist appears in the latest campaign for the “Laurence Graff Signature” collection.
CollectionsJul 06, 2026
Pandora’s New Baroque Pearl Collection Is a Whimsical ‘Wonder’One-of-a-kind pearls take the shape of ice cream cones, frogs, submarines, and other imaginative charms.
Supplier BulletinJul 02, 2026
Elevating Retail Showcases with Today's Necklace & Bracelet TrendsSponsored by Rio Grande Jewelry Supply
TrendsJul 02, 2026
Oscar Heyman’s Flag Brooch Celebrates AmericaThe American jewelry house, founded by Latvian immigrants, has been creating American flag brooches since 1917.
IndependentsJul 02, 2026
D. Geller & Son Partners with KSU Art Students on Store MuralThe artwork celebrates the Atlanta jeweler’s legacy and symbolizes its commitment to supporting local artists and its community.
Events & AwardsJul 02, 2026
Stratus Estate Buyers Offers Jewelers Turnkey Buying EventsIts team can evaluate jewelry and watches, as well as luxury handbags, artwork, and collectibles.
SurveysJul 01, 2026
Consumer Confidence Ticks Up in JuneFalling oil prices were a factor in the slight month-over-month improvement.
CollectionsJul 01, 2026
Rio Grande Launches First Finished Bridal CollectionThe new offering comprises more than 120 bridal and engagement ring styles with natural and lab-grown diamonds.
WatchesJul 01, 2026
Rolex Unveils Clock at Rockefeller CenterThe clock is part of the celebration for the soon-to-open Rolex headquarters on New York City’s Fifth Avenue.
IndependentsJul 01, 2026
Kristen Cannon of Valobra Master Jewelers Dies at 49The public relations professional is remembered for her benevolent generosity and unwavering commitment to those around her.
WatchesJun 30, 2026
Pokémon Fans Will Want to Catch This New G-Shock WatchThe new watch commemorates Pokémon’s 30th anniversary.
MajorsJun 30, 2026
Saks Global Emerges From Bankruptcy With New NameThe luxury retailer is now called Exemplar Luxury Group.
CollectionsJun 30, 2026
Jade Ruzzo’s New Collection Embodies the Art of Being a LadyThe “Lady” collection is a new take on old beauty standards with gemstone-adorned hair pins and combs, a compact mirror necklace, and more.
SourcingJun 30, 2026
Blue Nile Introduces Montana Sapphire CollectionThe new line is included in the e-tailer’s curation of jewelry celebrating America’s 250th anniversary.
GradingJun 30, 2026
AGS Opens 2026 Recertification ExamAll active members who earned their credential or designation before Dec. 1, 2025, are required to recertify.
CollectionsJun 29, 2026
Briony Raymond’s New Collection Is a ‘Carousel’ of Hard StonesThe new jewelry collection uses a colorful palette of onyx, malachite, tiger’s eye, mother-of-pearl, lapis, turquoise, and coral.
IndependentsJun 29, 2026
Look Inside Lee Michaels’ Revamped Mississippi FlagshipLee Michaels Fine Jewelry is celebrating 30 years in the Ridgeland, Mississippi community.
GradingJun 29, 2026
National Rarities Announces New Gemology ManagerSean Milliner has joined the company.
GradingJun 29, 2026
GIA to Open New London CampusClasses will begin in August at GIA’s new Canary Wharf location.
