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

Russia develops high-altitude zeppelin for the Arctic

28 june 2024

Aircraft engineers of the Department of Aircraft Aerodynamics at the Moscow Aviation Institute are developing a project for a high-altitude zeppelin-type airship with solar panels, said design engineer Alexander Gomberg.

"In order to reduce the mass of the structure and abandon heavy battery cells, we propose to make solar panels (on the airship) inside a transparent shell, it will work only in the polar zone and only during the polar day," Gomberg said, speaking at the Siberian Transport Forum in Novosibirsk.

Calculations show that the batteries will allow the zeppelin to get the necessary thrust. The engineer recalled that the problem for flights at high altitude is thin air.

"We solve this issue with the help of a single pusher propeller driven by an electric motor, which has a diameter of 10 meters, in our view it is like a helicopter rotor in size," Gomberg said.

At the same time, he noted, solar panels, payload and power plant are reusable, and the shell filled with gas can be replaceable, interfax-russia.ru reports.

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