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

Scientists create natural fabric to reflect sunrays, reduce body temperature

14 october 2024

A team of international researchers has developed a natural fabric that will help city dwellers cope with rising temperatures.

Engineers from Zhengzhou University and the University of South Australia said that the fabric they developed reflects sunlight and allows heat to escape, while blocking the sun's rays and lowering body temperature.

Unlike conventional fabrics that retain heat, the experimental fabric consists of three layers specifically designed for optimal cooling.

The upper layer, made of polymethylpentene fibers, effectively radiates heat. The middle layer of silver nanowires enhances the fabric's ability to reflect sunlight, preventing additional heat from entering the body. The lower layer of wool removes heat from the skin, providing cooling in the hottest urban temperatures.

According to the experiment, the fabric in an upright position turned out to be 2.3°C cooler than traditional materials, and when used as a horizontal coating it was 6.2°C colder than the environment, according to nia.eco.

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