Diamond market crash is Africa’s opportunity, not its crisis – M'zée Fula Ngenge

Global natural diamond supply is forecast to fall below 95 million carats this year, the lowest since 1987. For Dr. M'zée Fula Ngenge, chairperson of the African Diamond Council (ADC), this is not a death knell but a clarion call. In an exclusive...

Yesterday

Tracr passes 5 million rough diamonds milestone as De Beers expands provenance push

De Beers Group's blockchain-enabled traceability platform Tracr reached a significant milestone in 2025, with more than 5 million rough diamonds individually scanned and registered, up from 2.8 million cumulative registrations reported in 2024. The...

28 september 2026

South African diamonds head to Hong Kong: SDT partners with BRINKS for JGW 2026

South Africa’s State Diamond Trader (SDT) has confirmed the country's participation in Jewellery & Gem World Hong Kong (JGW) 2026 through a partnership with BRINKS. SDT marketing and communication manager Tsholofelo Gopolang Tselapedi...

14 september 2026

David Benderly: PermaScribe seeks to put trust mark on diamond table, not just girdle

In this interview with Rough & Polished’s Mathew Nyaungwa, PhotoScribe Technologies president and chief executive David Benderly explains how PermaScribe differs technically from conventional laser inscription, its potential to strengthen security, and...

31 august 2026

The great reset: Paul Zimnisky on supply catharsis, De Beers' bargain and the case for natural diamonds

The natural diamond industry is in the throes of its most profound reset in a generation. Supply is plunging to its lowest level since 1987 and De Beers—once valued at over $9 billion—is reportedly being sold for as little as $1 billion.
Lab-grown...

10 august 2026

Wastewater dumping provokes sharp release of methane - study

19 september 2024

Scientists at Tyumen State University have found out that the discharge of untreated domestic wastewater into swamps dramatically increases the release of greenhouse gases into the atmosphere.

According to the researchers, the intensity of methane flows in places where wastewater comes in contact with the swamps exceeded background values by almost 30 times.

Specialists together with colleagues from the Russian Academy of Sciences conducted a study of the Ob swamp, the length of which extends up to 100 km. The experts measured methane fluxes and took water samples to analyze the total chemical composition, the content of biophilic (absorbed) elements and dissolved inorganic carbon.

As scientists have established, methane emission into the atmosphere is associated with aerobic oxidation and the activity of special bacteria (methanogens) in reservoirs, which are activated when organic matter enters the reservoir. Accordingly, the more organic matter is supplied, the more nutrition the bacteria receive and the higher the gas emission is, ria.ru reports.

Alex Shishlo, Editor in Chief of the European Bureau Rough&Polished