Exclusive
Escaping the ‘panic phase’: DMCC-commissioned study urges natural diamond industry to emulate Swiss watch revival
The natural diamond industry is currently facing a disruption that closely mirrors the existential threat the Swiss watch industry encountered during the 1970s quartz crisis. According to a new comparative study commissioned by the Dubai Multi Commodities...
26 october 2026
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...
12 october 2026
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
Russia develops floating station for removing oil from waterbody beds
Contamination of waterbody beds with petroleum products is particularly hazardous because toxic deposits can persist in the ecosystem for long periods, poisoning living organisms and potentially re-contaminating the water, which hinders the recovery of the aquatic environment.
The patent holders note that existing solutions for addressing bottom contamination are often costly and labor-intensive—for instance, because they require the extraction and subsequent processing of the sediment. Furthermore, surface-based cleanup tools are unable to address pollution within the water column or near the bottom, while other systems feature complex designs that can cause the erosion of bottom sediments, further complicating the cleanup process.
"The invention relates to the field of environmental protection and is intended for use in natural or artificial waterbodies affected by accidental oil or petroleum product spills," the statement reads.
The system is a mobile station designed to clean oil and petroleum products from the beds of waterbodies. It consists of a series of interconnected floating platforms, one of which houses a mechanism for extracting bottom sediments, as well as a device for separating these sediments into their constituent fractions.
Alex Shishlo, Editor in Chief of the European Bureau, Rough&Polished
