Sourcing

Report: Toxic Leak from Angola Diamond Mine Kills 12, Sickens Thousands

SourcingSep 09, 2021

Report: Toxic Leak from Angola Diamond Mine Kills 12, Sickens Thousands

Officials from the neighboring DRC will seek compensation for the pollution they say has turned tributaries red and affected millions.

Kinshasa, Democratic Republic of the Congo—Twelve people have died and thousands fallen ill in the DRC after a diamond mine’s tailings dam polluted drinking water, government officials claim.

In August, researchers from the Democratic Republic of the Congo’s Kinshasa University reported that a leak of heavy metals from a mine in neighboring Angola was causing an “unprecedented environmental catastrophe,” Reuters reported.

According to the Congolese researchers, the pollution turned two tributaries of the Congo River—the Tshikapa and the Kasai—red, killed fish, and affected millions of people who live along their banks.

Officials in the DRC said they attribute the pollution to a leak from the Catoca diamond mine in neighboring Angola and have linked it to 12 deaths and the illnesses of more than 4,500 people.

Sociedade Mineira de Catoca (Catoca Mining Company), which operates the Catoca mine, released a statement saying tailings from its mine had leaked into nearby water sources in late July, filling the water with sediment before it could seal a rupture in the spillway, but claimed the leakage contained sand and clay, not toxic materials.

Catoca, a joint venture between Angolan state diamond company Endiama and Russian diamond mining company Alrosa, is the fourth largest open-pit mine in the world and the largest in Angola, responsible for producing more than 75 percent of the country’s diamonds.

Eve Bazaiba, DRC’s minister of environment, said she will seek compensation in accordance with the “polluter pays” principle, meaning those who cause the pollution should take on the cost of fixing any damage, The New York Times reported

The amount DRC officials are seeking has not yet been released.

The Times story also noted that while Bazaiba said the Angolan government and Catoca have acknowledged the pollution came from the diamond mine, other sources contend that isn’t the case and that Catoca has yet to confirm the allegations of a toxic spill.   

Investigations into the exact cause of the incident are ongoing. 

The Angolan government has not yet made a public statement about the incident, and Endiama did not respond to an email inquiry for comment from National Jeweler by press time. 

Alrosa sent the following statement: “Alrosa has offered support and expertise to remedy the consequences of the spill at Catoca. As a responsible minority shareholder of Catoca, Alrosa is committed to bringing more transparency.”

 Related stories will be right here …

The Latest

Bicolor pink and colorless diamond
GradingOct 21, 2025
GIA Examines Rare Bicolor Pink Diamond

The stone’s two zones, one pink and one colorless, may have formed at two different times, the lab said.

Pomellato Rodeo Drive Flagship Exterior
MajorsOct 21, 2025
Pomellato Brings ‘Global Attitude’ to Rodeo Drive Flagship

Hollywood glamour meets Milanese sophistication in the design of Pomellato’s new store in Beverly Hills, California.

Grown Brilliance NYC Flagship Exterior
Lab-GrownOct 21, 2025
Grown Brilliance Opens First Flagship

The New York City store showcases a chandelier with 1,500 carats of lab-grown diamonds designed by an FIT student.

LIM-401 2024 National Jeweler Supplier Bulletin- iD100 Web and Eblast FINAL (2) (1).jpg
Brought to you by
Protect Your Customers and Your Business

You deserve to know what you are selling–to protect your customers as well as your business and your reputation.

Douriean Fletcher Messenger Collection
Events & AwardsOct 21, 2025
‘Douriean Fletcher: Jewelry of the Afrofuture’ Opens at MAD

The Museum of Arts and Design's new exhibition features 75 pieces by the designer, best known for her work in the “Black Panther” films.

Weekly QuizOct 16, 2025
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Sothebys the glowing rose pink diamond
AuctionsOct 20, 2025
Sotheby's To Auction 10-Carat Vivid Pink Diamond

Making its auction debut, "The Glowing Rose" is expected to fetch $20 million at the November jewelry sale in Geneva.

Empress Eugénie’s pearl and diamond tiara
CrimeOct 20, 2025
See the ‘Priceless’ Jewels Stolen During Daytime Heist at the Louvre

It took the masked thieves less than 10 minutes to steal eight irreplaceable jewels from two display cases in the museum’s Apollo Gallery.

ja_fall_2024_by_headshot_stories_6824.jpg
Brought to you by
JA New York Fall Is Right Around the Corner

The upcoming show provides savvy retailers with the opportunity to stock their cases with best sellers in advance of the holiday season.

Charles London, Mayer and Fran Udell, Mark and Candy Udell
IndependentsOct 17, 2025
From the Jazz Age to the Information Age: London Jewelers Turns 100

In 2026, the jewelry retailer will celebrate a milestone only a small percentage of family-owned businesses survive to see.

The Edit – A Gallery of Italian Jewelry Masterpieces Graphic
Events & AwardsOct 17, 2025
An Edit of Italian Jewels Is Coming to NYC

The new showcase dedicated to Italian jewelry design is set for Oct. 29-30.

Judi Powers Jewelry Stella Earrings
TrendsOct 17, 2025
Piece of the Week: Judi Powers Jewelry’s ‘Stella’ Earrings

Take a gaze at the sky with this pair of platinum diamond-set star earrings with blue lace agate drops.

Jeffrey Zimmer Reeds Jewelers
IndependentsOct 16, 2025
Retailer Hall of Fame 2025: Jeffrey Zimmer

Jeffrey Zimmer's decades of leadership at Reeds Jewelers are defined by integrity, a love of sourcing gemstones, and a heart for community.

Sothebys salon new bond street
AuctionsOct 16, 2025
Sotheby’s Introduces Custom Jewelry Service

The new high jewelry design and production process takes 30 days or less from concept to completion, the auction house said.

Oscar Heyman 2025 Holiday Catalog Cover
MajorsOct 16, 2025
Oscar Heyman’s Holiday Catalog Is Out, and It’s Spectacular

The holiday catalog for 2025 features never-before-seen images of more than 100 one-of-a-kind masterpieces.

Foundrae United in Love Campaign Imagery
CollectionsOct 16, 2025
Foundrae Adds To ‘United in Love’ Collection

The brand has released a second installment of its collection of traditional and non-traditional commitment heirlooms.

Kathy Corey
IndependentsOct 15, 2025
Retailer Hall of Fame 2025: Kathy Corey

Corey rescued New England chain Day’s Jewelers, preserving its legacy with strong people skills, pragmatism, and a “get-it-done” attitude.

Colorado jeweler Peter Damian Arguello
CrimeOct 15, 2025
Men Receive Lengthy Prison Sentences for 2023 Murder of Colorado Jeweler

Charles Robinson Shay was sentenced to life in prison plus 120 years while his accomplice, Michael James McCormack, got 75 years.

Logo for Timepieces at Luxury
Events & AwardsOct 15, 2025
JCK, Luxury to Debut New Watch Section in Vegas Next Year

Timepieces at Luxury will take place at The Venetian and, like Luxury, will be invitation-only for the first two days.

Max Fawcett Claibourne Poindexter
AuctionsOct 15, 2025
Christie's Announces New Jewelry Department Leadership

The auction house named a new global head of jewelry, as well as a new head of the jewelry department for the Americas.

Schwanke-Kasten Jewelers, Tom Dixon
IndependentsOct 14, 2025
Retailer Hall of Fame 2025: Tom Dixon

As chairman of Schwanke-Kasten Jewelers, Tom Dixon has been tasked with honoring the past and shaping the future of the family-run store.

Katty Villapando Lyte and Mica Rencher of Shimmer LLC
Events & AwardsOct 14, 2025
Here Are the Winners of the BIJC, JA ‘Emerging Jewelers’ Grant

Katty Villapando Lyte and Mica Rencher received a $10,000 grant for their business, Shimmer Culture LLC.

Cooper Flagg family at Day’s Jewelers
IndependentsOct 14, 2025
Day’s Jewelers Crafts Custom Jewelry for No.1 NBA Draft Pick Cooper Flagg

The parents of the Dallas Mavericks rookie bought their engagement ring at a Day’s store in Bangor, Maine, in 1997.

Pragnell Kitulo Garnet collection
SourcingOct 14, 2025
Pragnell Debuts Kitulo Garnet Jewelry

The UK-based brand sourced the gemstones, which are fully traceable, from an artisanal mining community in Tanzania.

Astrid & Miyu 2025 12-Day, 24-Day, Solid Gold Advent Calendars
CollectionsOct 10, 2025
Count Down to the Holidays With Astrid & Miyu’s Advent Calendars

The trio of Advent calendars include a version with 18-karat gold and lab-grown diamond jewelry in a red lacquer jewelry box.

Front of Marla Aaron porcelain Nymphenburg Lock
CollectionsOct 10, 2025
Piece of the Week: Marla Aaron’s ‘Nymphenburg Lock’

Created in collaboration with Nymphenburg Porcelain, the lock is part of a four-piece collection that took two years to bring to fruition.

Alisa Bunger Frederick Goldman
MajorsOct 10, 2025
Frederick Goldman Names New VP of Sales

Jewelry industry veteran Alisa Bunger has taken on the role.

Feriel Zerouki, De Beers Chief Trade and Industry Officer
SourcingOct 09, 2025
Feriel Zerouki Is Leaving De Beers

The company and industry leader’s two-decade tenure with De Beers will come to a close at the end of the month.

×

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