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

IEA predicts further decline in fossil fuels, rise in clean energy investment

10 june 2025

The International Energy Agency (IEA) has published its newest World Energy Investment report, estimating capital flows into the energy sector to total $3.3 trillion this year, out of which renewables would account for $2.2 trillion, and fossil fuels for $1.1 trillion.

The agency argues that rapid growth in spending on energy transition over the past five years was kicked off by post-pandemic recovery packages and then sustained by a variety of economic, technology, industrial and energy security considerations, not just by climate policies. At the same time, some 70% of the increased spending came from net fossil fuel importers such as China and Europe.

“Emissions reductions provide a powerful reason to invest, but are often not the primary driver for investment in technologies that are increasingly mature and cost-competitive,” IEA said.

Energy investment is on the rise as electricity demand in industry, cooling, electric mobility, data centres and artificial intelligence increase. The electricity sector is set to attract $1.5 trillion of investment this year, some 50% higher than the total amount being spent on bringing oil, natural gas and coal to market.

Spending on low-emissions power generation has almost doubled over the past five years, led by solar at $450 billion in 2025. Global spending on batteries for power sector storage is set to reach $66 billion this year.

Lastly, according to IEA, growth in critical minerals investment slowed in 2024 amid lower prices, and exploration activity was flat year-on-year. Projects outside the main incumbent producers were most affected by the price uncertainty.

Theodor Lisovoy, Managing Editor, Rough&Polished