Exclusive
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
The Arctic now sees more snow and rain...
Prof John Walsh from University of Alaska Fairbanks said the sparseness of monitoring stations in the Arctic, especially out over the ocean, had always made it extremely difficult to judge some weather trends. But by taking two independent analytical approaches, using the data that does exist and a global climate model, it is now possible to get a meaningful picture.
According to Prof Walsh, heavy precipitation is the scene in recent times as Utqiagvik in northern Alaska had its wettest day on record just this past July. Over most parts of the Arctic, there are positive trends in the years' heaviest one-day and five-day precipitation amounts. This is especially true in the sub-Arctic North Atlantic, while the number of consecutive wet days is increasing over much of the central Arctic.
While freezing rain is becoming a bigger issue, Alaska's second largest city, Fairbanks, recently experienced a 35mm downfall. The problem is the ice layer that's left behind makes roads more hazardous and creates difficulties for foraging wildlife until the spring thaw comes.
Other complications include the rapid melt of heavier amounts of snowfall, which leads to flooding. Warmer temperatures mean more moisture is evaporating from the ocean, which will eventually precipitate out and show up as snow or rain. But the higher temperatures are also melting the sea-ice cover, exposing more ocean to evaporation, leading to further precipitation.
Aruna Gaitonde, Editor in Chief of the Asian Bureau, Rough&Polished
