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

Anglo flags third De Beers writedown as Teck merger looms

 

Anglo American is weighing a third writedown of De Beers in as many years as weak diamond prices persist and the miner advances asset sales ahead of its merger with Canada’s Teck Resources.

The century-old group said on Thursday it was reviewing the carrying value of its diamond business after average realized prices fell in 2025, warning the unit is likely to be lossmaking again.

The potential impairment comes as Anglo moves to finalize the sale of non-core assets, including De Beers. At the same time, the miner is preparing to merge with Teck in a transaction approved by shareholders and regulators late last year, creating Anglo Teck (official named confirmed).

The company booked a $2.9 billion impairment on De Beers in February last year, following a $1.6 billion writedown in 2024. Anglo, which owns 85% of the diamond company, offered few details on a sale process, saying only that it was “progressing.”

In a fourth-quarter production update, Anglo said diamond trading conditions “continued to be challenging” amid industry weakness, geopolitical tensions and tariff uncertainty. It said lower prices and market conditions could lead to an impairment when full-year results are released.

Diamond prices have come under pressure from weaker consumer demand in China and competition from cheaper, lab-grown stones. De Beers’ average realized price fell 7% to $142 per carat in 2025, driven by a 12% drop in the average rough price index.

Anglo said the decline was exacerbated by selling inventory below cost, largely lower-value goods. Adjusted for that mix, the equivalent price index reduction would have been 25% year on year, suggesting some underlying resilience in the market.

De Beers sold 5.9 million carats in the fourth quarter, up from 4.6 million a year earlier, lifting revenue to $571m from $543m. Even so, Anglo said it was undertaking an impairment review that could result in another writedown.

Exit hurdles
The prolonged slump complicates Anglo’s efforts to exit De Beers. Chief executive Duncan Wanblad said only that the sale was moving forward. A consortium led by former De Beers managing director Gareth Penny is seen as a frontrunner, though Botswana, which owns 15% of the company, has said it wants to take control.

Namibia has also expressed interest, and former chief executives Bruce Cleaver and Penny have been mentioned as potential buyers.

The De Beers sale forms part of a restructuring unveiled in 2024. Anglo demerged its platinum arm, Amplats (now Valterra), in June 2025, while the planned sale of its Australian metallurgical coal mines stalled after Peabody Energy (NYSE: BTU) walked away following a fire at Moranbah North.

Wanblad said on Thursday that the formal sale process for steelmaking coal was “progressing well,” without naming alternative buyers or addressing potential compensation from the US firm.

Copper reality check
Copper remains central to the Anglo-Teck investment case, but near-term output expectations have softened. Anglo cut its 2026 copper guidance to 700,000 to 760,000 tonnes from 760,000 to 820,000 tonnes, citing lower grades at several operations.

It also trimmed 2027 guidance to 750,000 to 810,000 tonnes, including at Collahuasi in Chile, which Anglo and Teck plan to integrate with Teck’s neighbouring Quebrada Blanca mine. For the longer term, the group added new guidance for 2028 of 790,000 to 850,000 tonnes.

A 15-km (9.3-mile) conveyor would be built to feed Collahuasi’s high-quality ore into QB’s new processing plants. (Click on map to enlarge)
Copper production in 2025 was 695,000 tonnes, roughly flat year on year and at the lower end of guidance. Goldman Sachs said output missed its estimate by 5%, with Anglo’s Quellaveco mine in Peru falling short by 10% on lower-than-expected grades. Collahuasi’s underperformance was already known, while Los Bronces in Chile ended the year strongly.

Adjusting for Collahuasi, the underlying miss narrows to about 2%, which Goldman said better reflects what the market had already priced in.

A sharp rise in copper prices in recent months has renewed interest in the metal and helped spur merger talks between rivals, including the once again abandoned merger between Rio Tinto (ASX, LON: RIO) and Glencore (LON: GLEN).

With ageing mines delivering lower grades and new projects costly and slow to develop, copper dealmaking has become more attractive as supply constraints tighten across the sector.

Source: DCLA

De Beers to Release “A Diamond Is Forever” Book Celebrating a Century of Natural Diamond Legacy

 

De Beers is set to release A Diamond Is Forever, a new luxury book exploring the evolution of the company’s natural diamond marketing and its profound influence on global culture, romance, and society. The book will be published next week by Assouline, a renowned publisher of high-end illustrated volumes.

Named after one of the most iconic advertising slogans in history, A Diamond Is Forever celebrates the cultural, artistic, and emotional legacy of natural diamonds — nature’s oldest treasure and one of humanity’s most enduring symbols of love and commitment.

De Beers is widely credited with transforming diamonds from an exclusive luxury reserved for society’s elite into a universal symbol used to mark life’s most important romantic milestones and personal achievements. Prior to the 1930s, diamond jewellery was exchanged discreetly within elite circles, with luxury houses maintaining strictly private client relationships. De Beers reshaped this narrative, positioning diamonds at the heart of modern romance.

In 1947, De Beers copywriter Frances Gerety coined the legendary phrase “A Diamond Is Forever,” embedding the gemstone into global consciousness as a lasting promise of love, endurance, and emotional significance. The slogan appeared across archival print advertising, magazine spreads, and celebrity endorsements, cementing the diamond’s place in popular culture.

The book also highlights De Beers’ historic collaborations with celebrated artists such as Pablo Picasso, Salvador Dalí, and Raoul Dufy, drawing parallels between the rarity of diamonds and the genius of fine art. These campaigns elevated diamonds beyond jewellery, reinforcing their artistic and cultural value while preserving a sense of exclusivity.

During the 1960s, Hollywood icons including Elizabeth Taylor and Marilyn Monroe further amplified the glamour of diamonds, while the company’s influential 1990s “Shadows” campaign — set to Karl Jenkins’ Palladio — captured the gemstone’s timeless, authentic, and eternal nature.

Over the past two decades, De Beers has periodically retired and revived the famed slogan, most recently reintroducing it in late 2023 as part of a refreshed “Seize the Day” campaign, originally launched in the 1990s.

According to the publisher, the story of diamonds is one of both transformation and continuity. In recent years, the narrative has expanded to include provenance, sustainability, and ethical stewardship, reinforcing the natural diamond as a symbol not only of beauty and permanence, but also of responsibility and conscience.

A Diamond Is Forever spans 240 pages and features 180 illustrations. Presented as a hardcover book housed in a luxury slipcase, it will retail for USD $195 and is scheduled for release on January 30.

Source: DCLA

De Beers Confirms 2026 Sight Dates and Cuts Rough Diamond Prices as Global Market Pressures Intensify

 

De Beers has released its 2026 sight schedule, confirming it will maintain its traditional 10 rough diamond sales over the 12-month period, providing a degree of operational continuity amid prolonged uncertainty across the global diamond industry.

The miner sells approximately 90% of its rough diamond output to approved sightholders, who commit to purchasing set volumes of rough diamonds in exchange for consistent and predictable supply. In line with this strategy, De Beers has confirmed it will extend its current sightholder agreement through 30 June 2026, ensuring stability within its sight system during a challenging market environment.

The extended contract continues to regulate De Beers’ rough diamond sales, which are sourced from its wholly owned and joint-venture mining operations in Botswana, Namibia and South Africa. Sales will continue to be conducted in these producing countries.

In a minor operational adjustment, De Beers announced that the April and September 2026 sights will be shortened to four days, compared with the traditional five-day format.

De Beers 2026 Sight Dates

• Sight 1: 19–23 January
• Sight 2: 23–27 February
• Sight 3: 23–27 March
• Sight 4: 27–30 April
• Sight 5: 25–29 May
• Sight 6: 6–10 July
• Sight 7: 17–21 August
• Sight 8: 22–25 September
• Sight 9: 26–30 October
• Sight 10: 30 November–4 December

De Beers Cuts Rough Diamond Prices Amid Weak Demand

Alongside the announcement of its 2026 sight calendar, De Beers has reportedly cut rough diamond prices, reflecting mounting pressure from weak demand, surging lab-grown diamond supply and ongoing trade disruptions.

The January reduction marked the company’s first official price cut since December 2024, following months of quietly offering discounts while maintaining official list prices above prevailing market levels. At the first regular sight of the year, De Beers implemented price reductions on rough stones larger than three-quarters of a carat, according to industry sources.

The exact scale of the price cuts remains unclear, as De Beers has adjusted its billing structure and altered the composition of its diamond boxes, making direct comparisons difficult. Under the sight system, De Beers sets prices and indicates expected purchase volumes for sightholders, a structure that continues to give the miner significant influence over the rough diamond market, despite buyers retaining the technical right to refuse goods.

Industry Downturn and Structural Challenges

The global diamond industry is experiencing one of its deepest downturns in decades, with demand and prices for natural diamonds declining sharply from 2023 through 2025. Miners have been forced to scale back production and reassess long-term strategies as market conditions deteriorate.

A major structural challenge has been the rapid rise of lab-grown diamonds, whose prices have collapsed in recent years. This has enabled lab-grown stones to capture increasing market share, particularly in the bridal jewellery segment, undercutting natural diamonds across key consumer categories.

China, once a vital growth engine for diamond jewellery, has become a significant drag on demand due to a slowing economy and declining marriage rates. At the same time, geopolitical pressures, including tighter sanctions on Russian diamonds, ongoing tariff threats and global trade frictions, continue to disrupt the diamond supply chain.

Trade Tensions Add Pressure to India’s Diamond Sector

Further uncertainty has emerged from US–India trade tensions, which have weighed heavily on India’s diamond industry. Under President Trump, US tariffs on a range of Indian imports — including gems and jewellery — were raised to as high as 50%, creating additional headwinds for global diamond flows.

The impact has been particularly acute given India’s central role in the industry. The country cuts and polishes around 90% of the world’s diamonds by volume, while the United States remains its largest export market, accounting for approximately one-third to nearly half of India’s diamond and jewellery exports.

As the official CIBJO laboratory for Australia, DCLA continues to closely monitor developments in rough supply, pricing dynamics and certification standards, as the natural diamond sector navigates a period of profound structural change.

Source: DCLA

De Beer’s 1873 Diamond, Still in Kimberlite

 

An extremely rare relic from the earliest years of the Kimberley diamond rush – a rough stone, still embedded in kimberlite – sold at auction in London for £10,500 ($14,000).

It dates back to the New Rush at Colesberg Kopje (now better known as the Kimberley mine), in South Africa that began when diamonds were first discovered there in 1871.

Furlong Auction House, at the London Diamond Bourse, in Hatton Garden, included it in a collection of “rare and highly desirable items across jewellery history” in its Collectables & Memorabilia auction on 8 January.

“This hand specimen of kimberlite (“blue ground”) contains a visible natural diamond crystal embedded in the matrix and retains its original manuscript presentation label dated May 23rd, 1873,” it said in the lot notes.

“The handwritten note – both on the specimen itself and on a later transcribed slip – reads: “Rev’d W. Thompson – A token of esteem from the Cong’l Church, De Beers New Rush, May 23, 1873. M.M.S., Sec’y.”

It said surviving labelled geological specimens from this period – especially with an exposed diamond crystal – were exceptionally scarce.

Source: DCLA

FOREVERMARK DIAMOND JEWELLERY CELEBRATES THE GRAND OPENING OF DE BEERS GROUP’S LARGEST FLAGSHIP STORE IN MUMBAI

 

Mumbai, 8th January 2026: Forevermark Diamond Jewellery marked a defining milestone in its India journey with the grand opening of the world’s largest flagship store by De Beers Group in Mumbai. Located at Crest Link, Khar West, at the heart of Linking Road, the nearly 5,000 sq. ft. store reflects the brand’s long-term commitment to Indian consumers seeking meaningful, design-led luxury.

The marquee launch was celebrated with an exclusive evening that brought together Mumbai’s most influential tastemakers, jewellery connoisseurs, creative voices, socialites, celebrities, and leading creators. Hosted within the flagship itself, the event offered guests a first glimpse into the brand’s stunning universe, featuring a fashion showcase and immersive experiences that seamlessly blended craftsmanship with contemporary style.

The evening unfolded with enthralling performances including live music and a spectacular fashion showcase, complemented by interactive installations and AI integrations around the Mine to Finger journey, branded photo moments, innovative tarot readings and displays of the new collection, creating an atmosphere of modern luxury and timeless elegance. Guests explored the store’s full portfolio, from refined everyday diamond jewellery to statement and high jewellery pieces, all designed to celebrate life’s most meaningful moments.

Every Forevermark Diamond Jewellery piece is crafted from some of the world’s most beautiful, rare, and responsibly sourced diamonds, each bearing a unique inscription, a promise of authenticity, integrity, and exceptional quality. This philosophy comes to life with the launch of the all-new Forevermark Icon Collection, inspired by the North Star as a symbol of clarity, direction, and confidence. It features versatile everyday diamond jewellery styles, striking statement pieces, and iconic designs across rings, earrings, necklaces, and bracelets.

This collection launch is also accompanied by the brand’s new campaign titled ‘My Guiding Light’ that celebrates four iconic women who represent modern Indian excellence across diverse fields. Manu Bhaker, professional shooter and double Olympic medallist; Diana Penty, actor; Masaba Gupta, designer, actor, and entrepreneur; and Princess Gauravi Kumari of Jaipur, social entrepreneur, each embody individuality, strength, and purpose, sharing their personal stories and perspectives through mini digital videos on Instagram. Together, they reflect the belief that confidence and direction come from within, perfectly aligning with the spirit of the Icon Collection.

All four of them were also in attendance at the event, bringing glamour and gravitas to the evening and reinforcing the store’s position as a landmark destination in Mumbai’s luxury retail landscape. The evening was further elevated by the presence of Mumbai Indian Cricketers Amelia Kerr, Milly Illingworth and Sajeevan Sajana, whose stories of resilience, precision and perseverance echo the enduring strength of natural diamonds.

Commenting on the launch, Sandrine Conseiller, CEO, Brands & Diamond Desirability, De Beers Group, said: “India is central to the future of the natural diamond category. The opening of our largest Forevermark store in Mumbai reflects both the strength of consumer response we are seeing and our long-term confidence in the market. As luxury consumption in India becomes more considered and value-driven, Forevermark is well positioned to build relevance through trust, craftsmanship, and enduring desirability.”

Shweta Harit, Senior Vice President, De Beers Group and CEO, Forevermark, added: “Mumbai marks an important next chapter in Forevermark’s India story. Following the encouraging response to our New Delhi store, this flagship reflects the scale of opportunity ahead. As our largest store globally, it brings together our brand vision, retail ambition, and commitment to the Indian consumer. This opening is also a key step toward our longer-term plan of building a network of 100 Forevermark stores in India by 2030.”

The new Mumbai flagship blends Forevermark’s contemporary international design with local sensibilities. The spacious store offers an immersive experience, showcasing everyday diamond jewellery, statement and high jewellery pieces, and iconic designs in a setting that reflects the brand’s commitment to thoughtful, experience-led luxury.

About Forevermark Diamond Jewellery

Forevermark Diamond Jewellery is the signature diamond jewellery brand from De Beers Group, the world’s leading diamond company, a name synonymous with more than 135 years of expertise and heritage in the world of diamonds. Every Forevermark Diamond Jewellery creation celebrates life’s most meaningful moments, featuring natural diamonds that are beautiful, rare and responsibly sourced. Every Forevermark diamond bears a unique inscription, ensuring authenticity and making each piece deeply personal.

Formed over billions of years deep within the Earth, Forevermark diamonds are hand-selected for their exceptional quality, graded beyond the 4Cs in the pursuit of absolute beauty. Responsibly sourced and carefully cared for along their journey, they reflect the brand’s commitment to creating a positive impact on the people and places its diamonds come from. Expertly crafted by master designers, Forevermark Diamond Jewellery combines modern artistry with timeless elegance. Each piece elevates the brilliance of its diamond while embodying the brand’s enduring values of beauty, rarity, and responsibility.

Namibia’s Diamond Output Hit by Price Drops and Lab Growns

Namibia’s rough diamond production fell by 3.5 per cent year-on-year during Q3 2025, as prices fell, demand for lab growns increased and inventories grew.

The Bank of Namibia said in its quarterly bulletin that the country’s output was 442,000 carats, down by 15.3 per cent on the previous quarter, valued at N$ 2.41bn (USD 147.3m).

“The decrease stemmed from planned actions to lower production at Debmarine Namibia on the back of a combination of downside pressures, including the falling price due to rising demand for lab-grown diamonds and high inventory levels.”

It said rough diamond revenue for Q3 fell by 19 per cent year-on-year and 17.4 per cent compared with the previous quarter.

The bank noted “persistently soft consumer demand in key markets such as China and the United States” as well as oversupply of diamonds by some major producers.

Namibia’s diamond sector is a cornerstone of its economy, historically accounting for 7 to 10 per cent of its GDP and 30 per cent of export earnings. Around three quarters of diamonds are recovered from the seabed by Debmarine’s fleet of ships.

Source: DCLA

BHP Walks Away from Last-Ditch Bid for Anglo American

Mining giant BHP has walked away from a last-ditch attempt takeover bid for Anglo American, parent company of De Beers.

It announced on Sunday (23 November) that it was “no longer considering a combination of the two companies”.

Melbourne-based BHP made hostile bids for Anglo in April and May 2024, both of which failed.

The move prompted loss-making Anglo to start streamlining its operations, to divest some unprofitable activities, including its diamond division, De Beers and to focus on copper and other money-making assets.

Anglo had hoped to complete the sale of De Beers by the end of this year, but despite intense interest, from the Botswana government among others, that has yet to happen.

BHP renewed its bid primarily to disrupt Anglo American’s planned $53 billion merger with Canadian miner Teck Resources, which is expected to go ahead on 9 December

Source: dcla

Angola Makes a Bid for De Beers, Reshaping the Global Diamond Landscape

De Beers Global Sightholder Sorting a parcel of rough diamonds over a light box using a hand loupe.

Angola has signalled its intention to buy back the 85% stake in De Beers currently held by Anglo American, in a move that has immediately captured global industry attention. The proposal, made through Angola’s state-owned diamond company Endiama, comes at a time when the diamond sector has struggled to regain momentum after the downturn that began in 2022.

The announcement positions Angola decisively on the world stage. The country produced 10.7 million carats in the first nine months of the year and is targeting a record 14.8 million carats by 2025. According to the Kimberley Process, Angola’s expected 14 million carats in 2024 place it above Botswana in rough-diamond output for the first time in two decades. This surge, driven by the vast Catoca open-pit mine and other major deposits, underscores Angola’s long-term strategy of advancing local beneficiation and resource industrialisation.

Against this backdrop, Endiama has formally expressed interest in acquiring Anglo American’s controlling stake as the parent company restructures and divests assets following its 2024 strategic review. Should the transaction proceed, it would mark one of the most consequential ownership shifts in the diamond industry’s modern history.

Complicating the landscape is Botswana’s position. The country currently holds the remaining 15% stake in De Beers and announced in September its intention to increase its shareholding to more than 50%. Botswana relies heavily on diamonds, which account for roughly one-third of government revenue and 80% of exports, while Angola is seeking to reduce dependence on oil through expansion of its mining sector.

The implications of an Angolan takeover are far-reaching. De Beers remains one of the world’s most influential suppliers of rough diamonds, with 2024 revenues of US$2.7 billion and a valuation near US$4.9 billion. Its sales cycles, production planning, and market guidance shape between one-quarter and one-third of global rough supply, giving the company significant influence over pricing, availability, and the high-end jewellery pipeline.

A shift in control could potentially redirect more value-added processes to Africa, including sorting, cutting, and polishing — areas historically dominated by centres outside the continent. Increased localisation could boost employment, strengthen regional economies, and reshape supply-chain dynamics at a time when Botswana has reduced output and seen fiscal pressure rise, while Angola’s production profile continues to accelerate.

However, questions remain. Angola has stated that the acquisition would not be funded through its national budget, leaving the structure and financing mechanism yet to be clarified. Diplomatic tension with Botswana is another risk factor, particularly if competing bids emerge or national interests collide.

On a global scale, the outcome could introduce both opportunity and volatility. Greater African control over rough supply may support local markets, but the broader diamond industry continues to face challenges, including subdued demand, geopolitical instability, and mounting competition from lab-grown diamonds, which have disrupted consumer expectations and pricing patterns.

If Angola’s bid succeeds, it would mark a historic realignment of influence within the natural-diamond sector — one with the potential to reshape trade flows, pricing dynamics, and the strategic balance of power for years to come.

Source: DCLA

De Beers Rough Sales Triple in Q3

De Beers sold $700m worth of rough diamonds across its two sights in the three months to 30 September – more than tripling the $213m recorded during the same period last year.

In the third quarter of 2024, the company held only one sight, having cancelled the August session due to weak demand.

During the Q3 2025 sights, specific assortments were offered at discounted prices. De Beers no longer provides sight by sight updates.

It noted that trading conditions “continued to be challenging,” although consumer demand for natural diamond jewelry remained broadly stable, particularly in the US.

The company said progress seen in the first half of 2025 was hindered by newly imposed US tariffs on diamond imports from India, according to its production report published on 28 October.

However, it welcomed the recent exemption granted for natural diamond imports from countries participating in “aligned partner” trade agreements, announced last month.

Meanwhile, quarterly production increased year-on-year by 38 per cent, to 7.7m carats, although it is down 5 per cent for the year to date (17.9m carats).

Production guidance for 2025 is unchanged at 20 to 23m carats.

Source: IDEX

Major opportunity for the diamond business to return to old strengths, says luminary

Botswana is seeking a greater interest in De Beers, and Angola is seeking an interest too. To the mind of diamond luminary Martyn Charles Marriott, this could be an opportunity to return to old strengths and disciplines.

In an article on the website of the International Diamond Manufacturers, Marriott cautions Botswana about going it alone and falling into the trap of yet again putting all its eggs into one basket.

Marriott notes that the current deal Botswana has with De Beers is fantastic in that 80% of mine profits go to Botswana – a level that far surpasses anything in the mining industry anywhere in the world.

Marriott expresses the view that the debate now under way about the future of De Beers presents an opportunity for a return to the discipline and control of the natural diamond market.

Many recall that the best economic viability of the diamond industry took place in the days when it had a stockpile and a quota approach, which kept supply and demand in crucial balance.

In addition, large sums were spent on unforgettable advertising campaigns and the entrenchment of the global diamond engagement ring tradition.

Collaboration is what gave diamonds their old strength; fragmentation is what is causing their current weakness.

Marriott recalls how collaboration led to flow of alluvial diamonds from West Africa being absorbed by the diamond buying offices that were created at source. In addition, Russia recognised the way in which the collaborative approach was good for everyone, from diamond miners through to diamond cutters, diamond traders, and diamond consumers.

It was Marriott, as the then manager of De Beers Dicor, who persuaded the government of Sierra Leone about the benefits of collaboration. This was ahead if his departure from De Beers, which coincided with the discovery of diamonds in Botswana, where he played a key consultancy role from 1970 to 1983.

It was then that Botswana was persuaded that the Central Selling Organisation system could uplift its economy – but with the caveat that the diamonds had to be properly sorted and valued, and production at Botswana’s Orapa was increased to a level that helped Botswana secure a favourable quota. It was also Marriott who initially proposed that the future development of the mines in Botswana should be by an equally shared 50/50 company.

For more than a dozen years, Marriott was a member of Botswana’s negotiating team with De Beers, which secured the very high level of profits that would accrue to the Botswana government from the development of its diamond mines. During the joint development of Jwaneng, he coordinated Botswana’s inputs into the project.

Interestingly, in 1980, even the Australians were persuaded about the merits of the Central Selling Organisation for the Argyle mine.

From 1985 through to the end of the century, Marriott was heavily involved in the restoration of the Angolan diamond industry, as consultant and valuer to Endiama, the article in on the website of International Diamond Manufacturers recalls.

In this instance, as production in Angola was then small, Marriott initially advocated sales by tender amid the build up a successful sales procedure that was eventually undermined by corruption.

The establishment of the Kimberley Process also came about with Marriott help, but unfortunately, in 1986, the diamond world began to disrupt. Argyle and De Beers ceased their cooperation. The Russians became increasingly independent, and Canadian mines opted to market their production separately.

Now synthetic diamonds are adding to the competition.

Meanwhile, Martyn’s two sons, Luke and Benjamin Marriott, are continuing worldwide valuing and have developed eValuer, a system of pricing and valuing diamonds.

“I relate all the above to demonstrate the experience that leads me to write this article concerning a possible future for the natural diamond industry based on cooperation between the African producers,” Marriott writes.

“I must admit that I found no enthusiasm for my ideas for African cooperation during my time working for the Government of Botswana. Moreover, at the end of my work there, I was at odds with its policy. I did not believe in the move towards local processing. I felt it unlikely that local establishments could compete with the industry as it stood, particularly the Indians. I preferred a sovereign wealth fund, further development of the cattle industry, tourism, and concentration on developing other industries. I felt that the pressure on De Beers for local processing could equally well be used on them and Anglo American to develop other industries.

“However, times change. Botswana is seeking a greater interest in De Beers, and Angola is seeking an interest too. To my mind, this could be an opportunity to return to old strengths and disciplines. Some sort of OPEC for diamonds that could provide a basis for the future,” Marriott proposes.

Source: Miningweekly

De Beers Expected to Post First-Half Loss

De Beers is expected to report a loss for the first half 2025 despite an uptick in sales during the second quarter.

Sales for H1 were down 13 per cent year-on-year, according to a production report published last Thursday (24 July) by parent company Anglo American. But Q2 showed a 14 per cent increase on the same period in 2024.

De Beers said the last three sights raised $1.185bn, buoyed by the sale of specific assortments at lower margins due to “stock rebalancing initiatives” or discounts on inventory.

So although revenue was higher compared with Q2 2024 ($1.039bn) Anglo said it expects to report negative underlying EBITDA for De Beers in the first half of 2025.

It also noted that “a formal process for the sale of De Beers is advancing, despite the current challenging market conditions”.

Rough diamond trading conditions remained challenged, it said, though improved industry sentiment at the end of the first quarter led to stabilization of polished diamond prices.

“But uncertainty surrounding U.S. tariffs announced in April subsequently slowed polished trading,” it said.

“In contrast to the ongoing challenging trading conditions, consumer demand for diamond jewellery remained broadly stable in the first half of the year.”

Meanwhile production decreased by 36 per cent to 4.1m carats in Q2, reflecting a planned production response to the prolonged period of lower demand. The biggest quarterly drops were in Botswana (-44 per cent) and Canada (-46 per cent). South Africa production actually rose 17 per cent.

Production guidance for 2025 is unchanged at 20 to 23m carats (actual production for 2024 was 24.7m carats) and average per carat price at $94 (actual average for 2024 was $152).

Source: DCLA

De Beers Boss Says Trump’s Diamond Tariffs Do Nothing for U.S. Jobs

The diamond world is facing fresh turbulence following the U.S. government’s decision to impose tariffs on imported diamonds — a move that De Beers CEO Al Cook says does nothing to support American jobs or the economy.

In an exclusive interview with the Financial Times, Cook made it clear: “There are no U.S. diamond mining jobs to protect.” He stressed that these tariffs don’t create employment or benefit the domestic industry — instead, they act as a consumption tax that ultimately punishes the American public.

A Tax on Love, Not a Boost to Industry
The U.S. remains the largest market for diamond jewellery, accounting for about half of global demand, yet it has no significant commercial diamond mining of its own. Every diamond on American soil has been imported — meaning the 10% blanket tariff on all imports, introduced by President Donald Trump, hits the diamond trade especially hard.

Unlike many raw materials that were exempt from the tariffs, diamonds were left out, intensifying the impact on a sector already grappling with declining demand and competition from synthetic alternatives.

According to Cook, the result has been immediate: the trade in natural diamonds briefly ground to a halt. The World Diamond Council echoed his warning, stating that $117 billion in annual revenue and over 200,000 U.S. jewellery jobs could be at risk if diamonds aren’t removed from the tariff list.

“Tariffs on diamonds are not protecting American industry,” Cook emphasised. “They’re just increasing the cost of engagement rings, anniversary gifts, and other sentimental purchases.”

Global Trade Routes Disrupted
What makes diamonds unique is their complex, high-value supply chain. They’re small, easy to transport, and often pass through multiple countries — from mines in Botswana and Angola, to polishing hubs in India, and finally into U.S. jewellery stores. Tariffs disrupt that finely tuned system.

This comes at a particularly sensitive moment for De Beers, as parent company Anglo American prepares for a sale or initial public offering (IPO) of the diamond giant. Despite industry challenges, De Beers is pushing ahead with IPO plans that could launch by early next year.

But the company is feeling the pain too: first-quarter revenue dropped 44% year-on-year to $520 million, reflecting both lower prices and reduced demand. Anglo American has also written down De Beers’ value by $4.5 billion over the past two years.

Hope on the Horizon?
Still, Cook remains optimistic. He believes that over time, U.S. tariffs on diamonds will be lifted. The American government has already granted tariff exemptions for items like smartphones and car components, and Cook is confident natural resources like diamonds will follow suit.

Adding to that optimism are positive developments in U.S.–India trade talks. India polishes over 90% of the world’s diamonds, making it a key link in the supply chain. A favourable trade agreement between Washington and New Delhi could ease the pressure and offer the diamond sector a much-needed reprieve.

In the end, the message from De Beers is clear: Tariffs on diamonds don’t help American workers or industry — they just make life more expensive for consumers. As negotiations progress and the global market adjusts, the diamond world will be watching closely to see whether policymakers come to the same conclusion.