Paul Zimnisky warns diamond industry is "killing the proverbial golden goose," urges radical split from LGDs

Diamond industry analyst Paul Zimnisky delivered a sobering assessment of the sector's 2025 performance, placing blame squarely on the trade's own practices. He argued that by marketing natural and lab-grown diamonds (LGDs) as interchangeable...

29 december 2025

Goldplat reports challenging year with strategic shifts amid lower profits

Goldplat PLC's annual report for the year ended 30 June 2025 presents a year of operational and financial challenge, marked by a significant reduction in profitability. The company reported a profit after tax attributable to owners of GBP1,01 million...

22 december 2025

David Johnson: De Beers charts cautious Angola return amid industry transformation

De Beers is rebuilding its presence in Angola through government partnerships and community engagement, marking a strategic comeback following its difficult exit years ago from the diamond-rich nation. However, De Beers spokesperson David Johnson cautioned...

24 november 2025

Maria Krasnova: Colored gemstones are a serious investment

Maria Krasnova, Executive Director of the renowned company “Samotsvety ot Sokolov” (Gems by Sokolov), spoke to Rough&Polished about the Gemstone project aimed at selling precious stones, as well as about current market trends, new challenges...

17 november 2025

Forging a new legacy: Tshenolo Ntshekang on building a black-owned diamond beneficiation business in South Africa

In an industry historically defined by limited access and foreign dominance, Tshenolo Ntshekang is carving a new path. The founder of Banzi and Karolo Projects, a black-owned diamond beneficiation business, Ntshekang, represents a growing wave of...

03 november 2025

Brazil almost free of illegal miners in Amazon Yanomami reservation

19 september 2024

Brazilian authorities claim they have almost quenched the illegal mining operations in the Yanomami reservation of the Amazon rainforest that have caused a humanitarian crisis of disease and malnutrition in the region.

Nilton Tubino, who was in charge of the operation, told Reuters that police and military forces, environmental agents and health workers coordinated action to destroy mining camps and gold prospects in the affected area. This was done to protect the indigenous tribe Yanomami who had their way of life, crops and hunting suffer because of illegal mining activities.

"We are seeing many of them bathing in the rivers and out hunting again, and clearings being planted for food," he said.

According to Tubino, the authorities conducted hundreds of operations since March and dismantled 42 clandestine airstrips used by the miners, set fire to 18 aircraft, seized 92 000 liters of diesel, sunk 45 dredging barges, destroyed 700 pumps, and dismantled 90 Starlink connectivity dishes.

The team has since set up a radar to monitor clandestine planes in the reservation. With backing from the armed forces, the government action succeeded in expelling 80% of the miners.

Mercury contamination is a usual consequence of illegal gold mining operations. Pollution of rivers makes them uninhabitable by fish which leads to malnutrition of local tribes, affecting their ability to obtain food. Active gold digging also exacerbated problems with malaria brought by the miners, which was addressed by the authorities by opening medical outposts for locals.

Theodor Lisovoy, Managing Editor, Rough&Polished