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

Mehul Shah pledges to bring new approach to leading WFDB

Mehul N. Shah, who was elected in July as President of the World Federation of Diamond Bourses at the 41st World Diamond Congress in Singapore, is one of India's best-known diamantaires and a prominent leader in the international diamond industry...

27 july 2026

Charlotte Rose on making history, modernising the London Diamond Bourse, and why finance is the industry’s silent crisis

When Charlotte Rose was elected president of the London Diamond Bourse in June 2026, she didn't just break an 86-year tradition—she became the first woman to lead any diamond bourse globally. In an exclusive interview with Rough & Polished’s Mathew...

20 july 2026

Metso to supply Mazoon Mining’s copper processing plant in Oman

29 january 2025

Metso signed an agreement in January with Mazoon Mining, a wholly owned subsidiary of Minerals Development Oman (MDO), to supply key processing equipment worth $30 million for its copper concentrator plant in Yanqul, Al- Dhahirah province, near the industrial city of Sohar.

The Mazoon Copper project, a cornerstone of Oman’s mining industry, will span 20 square kilometers and comprise five open pit mines with estimated reserves of 22.9 million tonnes of copper ore. It is anchored by a state-of-the-art processing plant covering 56,000 square meters with an annual processing capacity of 2.5 million tonnes of copper ore. The facility is designed to produce 115,000 tonnes of high-grade copper concentrate with a high-grade purity of 21.5%. This is a landmark project for the development of Oman’s mining industry, while also meeting the country’s broader economic diversification objectives in line with Vision 2040.

Groundbreaking at Mazoon, Oman’s largest copper project, took place in November last year. The project is an important step in meeting the growing global demand for copper, a key component of renewable energy technologies and electrical infrastructure.

By leveraging its rich mineral resources and implementing state-of-the-art technologies, Mazoon Mining aims to position the Sultanate as a competitive player in the global copper market.

Sustainability is one of the core principles of the Mazoon Copper Project. The project has implemented water recycling and waste management systems to preserve the environment, improve air quality and protect groundwater. Minerals Development Oman is implementing exploration campaigns for a number of strategic minerals, including copper, chromite, gypsum, limestone, dolomite and silica.

Hélène Tarin, Editor-in-Chief of the Asian Bureau, Rough&Polished