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

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 suggest spraying sulphur dioxide to re-freeze Earth's poles

03 november 2022
In what might seem like a last-ditch effort to save the melting icecaps and tackle global warming, scientists have suggested a mammoth and controversial solution.They suggest spraying sulphur dioxide in the atmosphere to refreeze the Earth's poles.
According to them, high-flying jets can be used to spray the upper layers of the atmosphere with microscopic aerosol particles. This would reflect the sunlight and allow the icecaps to cool and refreeze.
As per the detailed plan, 125 military jets with air-to-air fuelling tankers would be needed to release a microscopic cloud of sulphur dioxide. The altitude would be 43,000 feet, and the latitude needed is 60 degrees in both hemispheres. 13 tonnes of particles released in summer and spring would cool the Earth's poles by 2 degrees Celsius. An ex-scientist from the UK stated that this plan would refreeze the Earth's poles and check the rising sea levels globally.
Wake Smith, the scientist leading the study, stated that the suggestion would merely treat one of the symptoms of climate change. It would not give an effective remedy for the cause.

Aruna Gaitonde, Editor in Chief of the Asian Bureau, Rough&Polished