From an $18 Billion Giant to a $1 Billion Sale: The Rise and Reinvention of De Beers

 

For more than a century, De Beers was the undisputed leader of the global diamond industry. It transformed diamonds from a relatively rare luxury into the world’s most desired gemstone, creating the modern diamond market through visionary marketing, strict supply management and consumer confidence.

Today, that same company may be sold for as little as US$1 billion, marking one of the most remarkable reversals in the history of the luxury goods industry.

Anglo American Nears Historic Sale

Mining giant Anglo American is reportedly close to selling De Beers as it continues its restructuring following the failed takeover attempt by BHP in 2024.

According to reports, the preferred bidder is the Global Diamond Consortium (GDC), led by former De Beers Chief Executive Gareth Penny and backed by the governments of Namibia and Angola.

The proposed agreement would see GDC pay approximately US$750 million upfront, followed by a further US$250 million at a later stage. Additional performance-based payments may also form part of the final transaction, although negotiations remain ongoing and no final agreement has yet been reached.

The consortium also intends to inject approximately US$500 million into De Beers following the acquisition to strengthen operations and refocus the company on the mining and marketing of natural diamonds.

A Dramatic Fall in Valuation

The potential sale price is extraordinary considering De Beers’ former worth.

When Anglo American acquired the Oppenheimer family’s remaining stake in 2011, the transaction valued De Beers at nearly US$13 billion. During its strongest years, analysts estimated the company’s value exceeded US$18 billion.

However, a combination of falling rough diamond prices, weak Chinese luxury demand, changing consumer spending and the rapid emergence of laboratory-grown diamonds has dramatically reduced profitability across the sector.

Anglo has written down the value of De Beers three times in just three years, reducing its book value to approximately US$2.3 billion earlier this year.

The Company That Built the Modern Diamond Industry

While today’s headlines focus on declining valuations, they should not overshadow De Beers’ extraordinary contribution to the global diamond trade.

Few companies have influenced an entire industry as profoundly.

Throughout most of the twentieth century, De Beers controlled the overwhelming majority of the world’s rough diamond supply. Through the Central Selling Organisation (CSO), it managed production, stabilised prices and created confidence that diamonds would retain their value.

Perhaps even more influential was its marketing.

In 1947, De Beers launched the now legendary slogan:

“A Diamond Is Forever.”

That simple phrase fundamentally changed consumer behaviour.

It established the diamond engagement ring as the global symbol of love and commitment and remains one of the most successful advertising campaigns ever created.

For decades, De Beers also invested heavily in consumer education, retailer training, grading standards and worldwide promotional campaigns that helped grow demand across Europe, North America, Japan and later China.

Without De Beers, the global diamond jewellery market as we know it today would likely never have existed.

Botswana Remains Central

Any transaction must also satisfy the Government of Botswana, which owns 15% of De Beers and jointly owns Debswana, the partnership responsible for producing most of Botswana’s diamonds.

President Duma Boko has previously expressed interest in increasing Botswana’s ownership of De Beers, although recent reports suggest the country may instead accept a larger minority stake.

Botswana remains one of the world’s most important diamond-producing nations, and its future relationship with De Beers will be crucial to any successful acquisition.

Gareth Penny Returns

Leading the proposed acquisition is Gareth Penny, who served as Chief Executive of De Beers between 2006 and 2010.

During the Global Financial Crisis, Penny successfully guided the company through one of the most difficult periods in diamond history by temporarily suspending mining operations, reducing supply and securing approximately US$1 billion through a rights offering.

His return signals an intention to restore De Beers’ focus on natural diamonds while adapting to today’s very different market conditions.

Milestones in De Beers History

1888 – Cecil Rhodes consolidates South African diamond mining companies to form De Beers Consolidated Mines.

1934 – The Diamond Trading Company is established, laying the foundations for centralised rough diamond distribution.

1947 – The iconic slogan “A Diamond Is Forever” is created by advertising agency N.W. Ayer, forever changing the jewellery industry.

1950s–1980s – De Beers controls as much as 80–90% of the world’s rough diamond supply, creating unprecedented market stability.

1967 – Major discoveries in Botswana eventually lead to the formation of Debswana, transforming Botswana into one of Africa’s greatest economic success stories.

1990s – Increasing production outside the De Beers system begins reducing the company’s market dominance.

2001 – De Beers introduces its “Supplier of Choice” strategy, shifting from stockpiling diamonds to demand-driven marketing.

2011 – Anglo American acquires full ownership of De Beers after purchasing the Oppenheimer family’s stake.

2018 – De Beers launches Lightbox Jewellery to enter the laboratory-grown diamond market, recognising changing consumer trends.

2025 – Lightbox is wound down as De Beers recommits its strategy to natural diamonds.

2026 – Anglo American enters negotiations to sell De Beers for approximately US$1 billion.

A New Beginning Rather Than the End

Although the proposed valuation represents a dramatic decline from De Beers’ former glory, the company still possesses some of the world’s most recognised diamond brands, valuable mining assets and decades of expertise.

More importantly, De Beers leaves behind a legacy that reshaped the global jewellery industry. It pioneered diamond marketing, built international confidence in natural diamonds and helped establish universal grading standards that continue to underpin the modern trade.

The challenge for new ownership will not be rebuilding history—but adapting that remarkable legacy to a new generation of consumers in a market where natural diamonds must increasingly differentiate themselves through rarity, provenance and enduring value.

Source: DCLA

The Diamond: Nature’s Most Remarkable Gem

Diamonds are among the most fascinating natural materials on Earth. Known for their beauty, rarity, and incredible durability, diamonds have captured human imagination for thousands of years. But beyond their brilliance as gemstones, diamonds are remarkable scientific creations with unique physical properties that make them valuable in jewellery, technology, and industry.

A diamond is a natural crystal made entirely from carbon. What makes it extraordinary is not the element itself, but the way the carbon atoms are arranged. These atoms form a highly organised crystal structure known as the diamond cubic structure, creating one of the strongest natural materials known to mankind.

Pure diamonds are colourless, transparent, and extremely resistant to chemical reactions. They are tasteless, odourless, and do not dissolve in water. Their exceptional hardness and ability to conduct heat have made diamonds valuable not only as gemstones but also in advanced industrial applications such as cutting tools, polishing equipment, and high precision technology.

The Unique Structure of a Diamond

The secret behind a diamond’s strength lies within its atomic structure.

Each carbon atom in a diamond is connected to four other carbon atoms through extremely strong bonds. This creates a rigid three dimensional structure that gives diamonds their famous hardness.

By comparison, graphite, another form of carbon, has a completely different structure. Graphite atoms are arranged in layers that can easily slide over one another, making graphite soft and useful as pencil lead.

Although diamond and graphite are both made from carbon, their different atomic arrangements create completely different materials.

Diamonds are considered a “metastable” form of carbon. Under normal conditions, graphite is technically the more stable form, but the transformation from diamond to graphite happens so slowly that it would take millions or even billions of years.

How Diamonds Are Formed

Natural diamonds are ancient treasures created deep beneath the Earth’s surface.

Most natural diamonds formed between 1 billion and 3.5 billion years ago, long before humans existed. They developed under extreme pressure and temperatures deep within the Earth’s mantle, generally between 150 and 250 kilometres below the surface.

Under these conditions, carbon containing fluids moved through rocks and, over enormous periods of time, formed diamond crystals.

Volcanic eruptions later transported these diamonds closer to the surface. They became trapped in special volcanic rocks known as kimberlites and lamproites, where they could eventually be discovered and mined.

Some diamonds have come from even greater depths, reaching hundreds of kilometres below the Earth’s surface.

The Origin and History of Diamonds

The word diamond comes from the ancient Greek word “adamas”, meaning unbreakable, untamed, or unconquerable. This reflects the early belief that diamonds represented strength and permanence.

Diamonds are believed to have first been discovered and mined in India thousands of years ago, with early sources coming from river deposits. Ancient cultures valued diamonds not only for their beauty but also for their symbolic and spiritual importance.

Over time, diamonds became associated with wealth, power, and status. Their popularity increased dramatically from the 19th century as new diamond deposits were discovered, cutting and polishing techniques improved, and the global jewellery market expanded.

The Discovery That Diamonds Are Carbon

For centuries, the true nature of diamonds was unknown.

In the 1700s, French scientist Antoine Lavoisier conducted experiments using sunlight focused onto diamonds in an oxygen environment. He discovered that burning diamonds produced carbon dioxide, proving that diamonds were made of carbon.

Later, English chemist Smithson Tennant expanded on this work and demonstrated that diamonds and graphite were chemically the same element arranged differently.

This discovery changed the understanding of diamonds forever and showed that one element could exist in completely different forms.

Why Diamonds Have Different Colours

Although many people imagine diamonds as colourless, diamonds naturally occur in a wide range of colours.

A perfectly pure diamond has no colour, but natural diamonds often contain tiny amounts of other elements or changes in their crystal structure. These small differences create unique colours.

Nitrogen is the most common impurity and can create yellow and brown shades.

Boron can produce blue diamonds.

Radiation exposure can create green diamonds.

Structural changes within the crystal can produce pink, red, and other rare colours.

The rarest coloured diamonds, especially vivid pink, red, and blue diamonds, can become some of the most valuable gemstones ever sold.

Diamond Clarity and Natural Characteristics

No two natural diamonds are exactly alike.

During formation deep inside the Earth, diamonds can capture tiny internal features known as inclusions. These may include minerals, growth patterns, or small structural changes.

Clarity grading evaluates these characteristics under magnification and helps determine a diamond’s rarity and value.

The fewer visible inclusions a diamond has, the rarer it generally becomes.

The Importance of the 4Cs

The quality and value of a diamond are traditionally assessed using the famous 4Cs:

Colour

Colour measures how close a diamond is to being completely colourless. Colourless diamonds are highly valued, while naturally coloured diamonds are graded differently due to their rarity.

Clarity

Clarity evaluates internal inclusions and external features. These natural characteristics help identify the uniqueness of each diamond.

Cut

Cut is one of the most important factors affecting a diamond’s beauty. A well cut diamond allows light to enter and reflect back through the stone, creating brilliance, fire, and sparkle.

Carat

Carat refers to the weight of a diamond. Larger diamonds are generally rarer, but size alone does not determine value. Quality, rarity, and overall characteristics are equally important.

The Strength and Hardness of Diamonds

Diamonds are the hardest natural material on the Mohs hardness scale.

This hardness allows diamonds to maintain their polished surfaces for long periods, making them ideal for jewellery that is worn every day, such as engagement rings.

However, hardness does not mean a diamond cannot be damaged. Diamonds can still chip or break if struck in certain directions because they have natural planes within their crystal structure.

Diamonds Beyond Jewellery

While diamonds are famous as gemstones, their properties make them useful in many industries.

Their extreme hardness makes them ideal for cutting and polishing materials.

Their ability to transfer heat efficiently allows them to be used in advanced technology.

Their electrical and optical properties are also being explored for scientific and electronic applications.

Natural Diamonds and Laboratory Grown Diamonds

Modern technology has made it possible to create diamonds in laboratories.

Laboratory grown diamonds are produced using methods that recreate diamond forming conditions. The two main methods are High Pressure High Temperature (HPHT) and Chemical Vapour Deposition (CVD).

These diamonds have the same chemical composition as natural diamonds, but specialised equipment can identify differences in their growth patterns and characteristics.

Gem laboratories use advanced testing techniques to distinguish between natural and laboratory grown diamonds.

Diamond Certification and Trust

Because every diamond is unique, professional grading and certification play an important role in the diamond industry.

Independent laboratories examine diamonds using scientific methods to assess their characteristics, confirm authenticity, and provide accurate grading information.

At DCLA, diamond science, advanced technology, and expert knowledge are combined to provide confidence and transparency for consumers and the jewellery industry.

The Enduring Legacy of Diamonds

A diamond represents billions of years of natural history, transformed through expert cutting and craftsmanship into one of the world’s most admired gemstones.

From deep beneath the Earth’s surface to the jewellery worn around the world, diamonds continue to fascinate because they combine science, beauty, rarity, and history in a single extraordinary crystal.

Source: DCLA

Natural Diamonds Show Resilience Through Transparency, Producer Growth and Global Market Evolution

 

DRC Artisanal Diamonds Achieve Strong Results in Antwerp Auction

Artisanal diamonds from the Democratic Republic of Congo (DRC) have achieved a positive result in Antwerp, selling above expectations in a landmark auction designed to improve market access for small scale diamond producers.

The sale, organised by the Antwerp World Diamond Centre through its OrigemA programme, featured 103.77 carats of fully traceable rough diamonds sourced from artisanal mining cooperatives in the DRC.

The diamonds achieved an average price of $66 per carat, exceeding the estimated market value of $58 per carat. The total sale value reached approximately $6,000, demonstrating the potential for responsibly sourced artisanal diamonds to compete successfully in the international marketplace.

OrigemA was created through collaboration between Belgium and the DRC to connect artisanal miners with global diamond markets. The programme aims to ensure that more value from diamond production remains within local communities, supporting areas such as mining development, agriculture, healthcare and education.

Karen Rentmeesters highlighted that the auction demonstrated Antwerp’s continued role as a leading rough diamond trading centre, where international competition helps achieve fair market pricing.

The result also reflects a wider industry movement toward greater transparency, traceability and responsible sourcing as consumers increasingly seek confidence in the origins of natural diamonds.

Diamond Industry Adapts as Producer Countries Take a Greater Role

The natural diamond industry continues to adjust to changing consumer behaviour, economic uncertainty and evolving market conditions. However, industry leaders believe important foundations are being created for future growth.

World Federation of Diamond Bourses president Yoram Dvash noted that one of the most encouraging developments is the increasing participation of African producer nations across the diamond value chain.

Countries including Botswana and Angola have strengthened their involvement through their affiliation with the WFDB, while other producing nations such as Rwanda are also seeking a larger role in shaping the future of the diamond sector.

This reflects a broader shift where producer countries are looking beyond mining and becoming more involved in trading, manufacturing, marketing and value creation.

The potential future ownership changes surrounding De Beers, currently controlled by Anglo American, further highlight the changing structure of the global diamond industry.

Greater participation from producing countries could create stronger alignment between miners, manufacturers, traders and retailers, helping build a more balanced and sustainable diamond ecosystem.

Traceability and Consumer Confidence Become Industry Priorities

Transparency remains a major focus for the diamond sector as companies work to strengthen consumer trust.

The acquisition by Gemological Institute of America of a stake in De Beers’ Tracr platform represents continued movement toward verified diamond provenance and digital traceability.

As laboratory grown diamonds become more prominent in the market, the natural diamond industry is placing increasing emphasis on communicating the rarity, geological history and emotional value of natural diamonds.

Industry leaders continue to stress the importance of investment in marketing and education to help consumers understand the differences between natural and synthetic diamonds.

Russia Holds the Largest Share of Global Diamond Reserves

Global diamond supply remains concentrated among a small number of countries, with Russia holding the largest known reserves.

Russia accounts for almost half of the world’s diamond reserves, significantly ahead of Botswana, which holds approximately 250 million carats, representing around 14.7% of global reserves.

Other major reserve holders include Angola and the Democratic Republic of Congo, each with approximately 150 million carats, while South Africa holds around 87 million carats and Zimbabwe approximately 56 million carats.

Together, Russia and Botswana account for close to 60% of global diamond reserves, highlighting the concentration of future supply potential.

Africa continues to play a central role in the natural diamond industry, with Botswana, Angola, the DRC, South Africa and Zimbabwe collectively representing a significant share of known reserves.

The Future of Natural Diamonds

The diamond industry is entering a period of transformation. Greater producer involvement, improved traceability, responsible sourcing and renewed consumer education are reshaping the market.

While challenges remain, the continued focus on transparency and cooperation across the diamond pipeline provides a pathway toward a stronger future for natural diamonds.

The industry’s ability to adapt while preserving the rarity and uniqueness of natural diamonds will remain central to maintaining consumer confidence and long term value.

Source: DCLA

De Beers Sale Nears Final Chapter as Anglo American Moves to Exit Diamond Business

 

The long awaited sale of De Beers appears to be approaching its final stage, with Anglo American expected to complete the transaction before the middle of 2026 as the mining giant continues its strategic shift away from diamonds.

Speaking on 16 June at the Reuters NEXT Europe economic summit in London, De Beers CEO Al Cook indicated that the sale process could be concluded within “a few weeks, rather than a few months”, signalling that one of the most significant transitions in the modern diamond industry is moving closer to completion.

After more than a century as one of the most influential names in the global diamond trade, De Beers is entering a new era. Anglo American began reviewing its portfolio in 2023 as part of a broader strategy focused on commodities with stronger long term growth potential, including copper, iron ore and minerals linked to the global energy transition.

The shift comes after a challenging period for the diamond market. Between 2022 and 2025, De Beers experienced a substantial decline in financial performance, with sales falling from approximately US$6.6 billion in 2022 to around US$3.5 billion in the latest reporting period. Production also declined from approximately 35 million carats to 21.7 million carats.

Changing Consumer Demand Reshapes the Diamond Market

The decline in luxury spending in China, combined with the rapid growth of lab grown diamonds in the United States, has placed significant pressure on demand for natural diamonds.

The market has experienced three consecutive years of weaker demand, forcing the industry to reassess supply, pricing strategies and the long term role of natural diamonds in the luxury sector.

Despite these challenges, interest in acquiring De Beers remains strong. The company continues to attract potential buyers, including strategic investors, diamond producing nations and experienced industry figures.

Botswana, which already owns a 15 per cent stake in De Beers, has been exploring opportunities to increase its involvement alongside international partners. Diamonds remain central to Botswana’s economy, representing a major share of export earnings and a significant contributor to national GDP.

A greater ownership position could allow Botswana to capture more value from the diamond supply chain and increase its influence over the future direction of the global diamond industry.

Future Diamond Supply Could Support Prices

While the short term market remains challenging, potential buyers are also focused on the longer term fundamentals of diamonds, particularly the issue of supply scarcity.

The discovery of major new diamond deposits has slowed significantly. The Luele mine in Angola is regarded as one of the most important discoveries of the past two decades, while several established mines in Canada and southern Africa are expected to reduce production or close in the coming years.

As global production declines, the balance between supply and demand could begin to shift. A tighter supply environment may provide support for natural diamond prices over the medium to long term.

The sale of De Beers represents more than a corporate transaction. It marks the end of an era for one of the most recognised names in luxury and signals a new chapter for the global diamond industry, where ownership, supply control and changing consumer preferences will shape the future of natural diamonds.

Source: DCLA

Steep Rise in De Beers Rough Production

 

De Beers says rough diamond production increased by 17% in the first three months of 2026, to 7.1 million carats.

The increase was largely driven by the release of stockpiled ore at Gahcho Kue, in Canada, (up 163%) and higher underground volumes at Venetia in South Africa (up 53%).

The loss-making miner said, however, that trading conditions remained “challenged” due to ongoing industry, geopolitical and tariff headwinds.

Rough sales at the two sights held during the quarter saw revenue rise, year-on-year by almost 25% to $648 million, although average per carat prices fell 19% to $101.

Production guidance for 2026 remains unchanged at 21-26 million carats, the company said in its Production Report for the First Quarter of 2026, published on 28 April.  

Actual rough production was 24.7 million carats in 2024 and 21.7 million carats in 2025.

Botswana, which accounts for more than two thirds of all De Beers’ diamonds, saw production rise by 5% year-on-year during Q1 2026.

There was a 12% drop in Namibia, due to scheduled maintenance on two vessels at Debmarine Namibia and the of decommissioning two vessels.

There was 53% production rise in South Africa, largely due to increased processing of underground ore from Venetia, and a 163% increase in Canada due to the planned release of ore from a new area of Gahcho Kue.

Source: DCLA

Production Rises, Prices Fall, and Technology Redefines Trust in Diamonds

 

De Beers Production Up, But the Market Signal Is Misleading

De Beers reported a 17% year-on-year increase in rough diamond production for Q1 2026, reaching 7.1 million carats. At face value, the figure suggests strengthening momentum. However, a deeper analysis reveals a far more measured reality.

The increase is primarily operational, not demand-driven. Output surged 88% quarter-on-quarter, largely due to a rebound from a deliberately reduced Q4 2025 production base. Key contributors included planned ore releases from the Gahcho Kué mine in Canada and higher underground volumes at Venetia in South Africa both outcomes of long-established mine plans rather than responses to improving market conditions.

This distinction is critical. Production growth tied to mine development cycles does not reflect rising consumer demand. Instead, it highlights the timing of extraction phases within capital-intensive, long-term mining programmes.

More telling is the divergence between volume and value. While production rose 17%, De Beers’ average realised prices declined by 19% over the same period. This inverse relationship underscores ongoing softness in the natural diamond market, where increased supply is not being met with corresponding demand.

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Angola Expands Ambitions with Rio Tinto Joint Venture

In a strategic move to expand its diamond sector, Rio Tinto has entered into a joint venture with Angola’s state-owned Endiama to develop the Chiri project.

The new entity, Sociedade Mineira do Chiri, will be majority owned by Rio Tinto (75%), with the remaining stake held by Endiama. Located in Angola’s resource-rich eastern region, the project has already shown promising kimberlite indications following early-stage exploration.

While capital expenditure has yet to be allocated, the initiative reflects Angola’s broader strategy to increase diamond output and attract foreign investment. This comes at a time when global diamond prices remain under pressure, reinforcing the long-term nature of such investments rather than any short-term pricing optimism.

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DiaDNA: A Technological Leap in Diamond Traceability

KP Sanghvi & Sons has introduced DiaDNA, a next-generation traceability platform that represents a significant advancement in diamond authentication.

Unlike traditional methods that rely on inscriptions, documentation, or external markers, DiaDNA analyses the diamond at an atomic level using advanced scanning and artificial intelligence. This process generates a unique structural “fingerprint” inherent to the stone itself immutable and impossible to replicate.

Each fingerprint is securely stored in a cloud-based system, allowing verification at any stage of the supply chain, from manufacturing through to retail. The technology enables:

• Independent, real-time authentication
• Enhanced provenance tracking
• Reduced reliance on fragmented paperwork
• Greater transparency for consumers and compliance teams

Fully integrated into KP Sanghvi’s Surat operations since 2024, DiaDNA signals a broader industry shift toward verifiable, data-driven provenance. As expectations around ethical sourcing and transparency continue to rise, such innovations are likely to become central to maintaining trust in natural diamonds.

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Market Perspective

The Q1 2026 landscape presents a clear narrative: increased production does not equate to increased demand. While miners continue to execute long-term operational strategies, pricing pressures persist across the market.

At the same time, structural shifts are underway. Nations like Angola are positioning for future supply growth, while technological innovation exemplified by DiaDNA is redefining how diamonds are tracked, authenticated, and ultimately trusted.

For the trade, the message is precise: understanding the difference between operational supply growth and genuine market demand has never been more important.

Source: DCLA