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

Roman Karakurkchi: Maintaining the highest standards of jewelry craftsmanship

Roman Karakurkchi is the founder of the Roman Karakurkchi jewelry brand and the International Jewellery School that brings together instructors from Russia, the USA, the Netherlands, Spain, Belgium, Italy, and Germany, as well as students from 65 countries...

03 august 2026

Tanzania's nickel producer Lifezone Metals considers listing in New York

15 december 2022

Lifezone Metals, which plans to mine nickel in Tanzania, has reached a definitive agreement to merge with GoGreen Investments, creating the first nickel resource and green technology company to be listed on the New York Stock Exchange (NYSE). 
Upon completion of the proposed transaction, the combined company will operate as Lifezone Metals. “Lifezone is bringing to market an economic solution that aims to reduce the impact on the climate at a time when there is a clear imbalance between supply and demand for responsibly sourced battery materials,” said GoGreen chief executive John Dowd.
“The company is developing what it believes will be one of the cleanest, most socially responsible nickel production facilities in the world. The proprietary technology has the potential to significantly lower the cost, as well as the environmental and climate footprint, of mineral processing.”
Lifezone Metals founder, Keith Liddell, said their partnership with BHP provides additional funding to support the development of the Kabanga Nickel Project. 
BHP has agreed to double its 8.9% investment in Kabanga Nickel and has the option to increase its stake by an additional 60.7%. 
The Tanzanian government has a 16% stake in Kabanga Nickels Tanzania's subsidiary, Tembo Nickel. Kabanga has a resource of 44 million tonnes containing nickel as well as copper and cobalt. Production is expected to start in 2026.

Mathew Nyaungwa, Editor in Chief of the African Bureau, Rough&Polished