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

Russian engineers create protective coating for aircraft engines operating in the Arctic

19 april 2024

Russian engineers have developed a new protective coating for aircraft engines, which will allow aircraft to operate safely in the harsh Arctic climate, said Sergey Grishin, a leading engineer at the NTI Competence Center.

According to him, engineers have created a protective coating for turbojet engines, the erosion resistance of which with equal thickness indicators is at least twice as high as that of foreign counterparts.

The coating has a number of unique properties. It is several times stronger than organosilicon coatings and significantly exceeds them in terms of adhesion to the surface of materials. There is practically no ice on engine parts with a new coating, while on those where the standard one was used, ice thickness can reach 7 mm. The abrasive wear of the surfaces protected by the coating is minimized.

The new coating can be used not only for aircraft engines, but also for protection against icing of electrical structures, roofs of houses, facades of buildings, as well as ships and equipment operating in the Arctic, vz.ru reports.

Alex Shishlo for Rough&Polished