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

Yoram Dvash: Industry unity, producer leadership and marketing investment key to natural diamond's future

The natural diamond industry is navigating a period of significant transition, but there are increasing signs that the foundations for a stronger and more positive future are being built, according to the World Federation of Diamond Bourses (WFDB)...

29 june 2026

Global copper output seen increasing 2.5% in 2025 thanks to Chile, Mongolia - BMI

15 july 2025

Research agency BMI projects that the global primary copper production this year would increase by 2.5% year-on-year on the back of a recovery in Chile and a ramp-up of the Oyu Tolgoi project in Mongolia.

At the same time, this increase will be offset by reduced output guidance at the Kamoa-Kakula mine in the Democratic Republic of the Congo (DRC).

BMI expects that primary copper output will increase between 2025 and 2034 by 2.9% a year on average. The total mine output is projected to rise from 23.8 million tonnes this year to about 30.9 million tonnes by 2034

Copper mine production in Chile will be supported by higher output levels at the Quebrada Blanca, Escondida, Centinela, Mantos and Codelco mines, offsetting declines at mines such as Collahuasi, Los Pelambres and others. Overall, copper output in the country is expected to rise 3% year-on-year.

Theodor Lisovoy, Managing Editor, Rough&Polished