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.
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.”
The Latest

The De Beers Group CEO also discussed tariffs, Desert Diamonds, and the pending sale of De Beers in an interview with Michelle Graff.

The industry veteran is bringing his 56-year run in the fine jewelry sector to an end.

The panel discussion will feature LGBTQ+ leaders across the jewelry, luxury, and creative industries.

As gold prices rise, today’s retailers are looking for alternatives at prices that will appeal to wider audiences.

Inspired by a locket that got run over, the “Smash” capsule collection reimagines the shape of Lichtenberg’s signature style.


The company has promoted Katherine Whitacre to the role.

The jewelry manufacturer has added Taylor Swift-esque diamond shapes, and more silver, gold vermeil, and gold-plated jewelry.

With the trade and customer trust in mind, GIA® developed NextGem™ – on-demand training designed specifically for retail.

Those born in June can celebrate with pearl, alexandrite, and moonstone jewelry.

The platform allows retailers to guide clients through a customizable engagement ring buying experience in a branded interface.

Jim Springer, owner of Dunkelberger’s Fine Jewelry, is heading into retirement.

When conducting its May consumer confidence survey, The Conference Board asked extra questions about consumers’ budgeting strategies.

The “Tunnel” charm, our Piece of the Week, celebrates Pride Month with its design inspired by hope and the light at the end of the tunnel.

Up for auction at Sotheby’s, the collection of Tempelsman’s personal effects includes a Cartier Tank watch Jackie O. gifted him.

The Miami-based fine jewelry brand will host its first summer residency in the Colorado mountain town from June 5 to Aug. 23.

The organization also announced its international board of directors for the 2026-2027 term.

Saks Global confirmed the closure this week, spelling the end for a store that’s been part of downtown Dallas for more than 100 years.

Smith discusses how managers should handle a top performer's exit, warning that a poor response could have a lasting impact.

The Gemological Institute of America is now a 30 percent stakeholder in Tracr, the De Beers-backed blockchain for diamonds.

The retailer is bringing Rolex Certified Pre-Owned watches to five U.S. cities in 2026 for collectors to see, try on, and purchase.

The actress and entrepreneur stars in the jeweler’s new campaign that celebrates life’s quiet moments.

The price of gold has risen, affecting the number of pieces designers make, the materials they use, and how they position themselves.

The jewelry retailer is zeroing in on Zales, Jared, Kay Jewelers, and Blue Nile as it looks to create unique brand identities for each.

Dr. Akinwumi Adesina, a development economist, will head the fund created to help Botswana diversify its economy.

Sotheby’s has appointed the former Phillips executive as its global head of private sales and retail in its watches division.

A private collection of five Paraíba tourmalines also will be up for sale at Sotheby’s High Jewelry auction in New York, scheduled for June 16.

From Gen Z’s view of luxury to “doom spending,” these are the six consumer trends to note this year.

























