Showing posts with label south africa. Show all posts

Wednesday, 3 June 2026

The 24 Most Important Diamonds in History

Size, History, Master Cutters and Present Locations

Diamonds have fascinated humanity for centuries. Some became symbols of royal power, others transformed the science of diamond cutting, and a few achieved legendary status because of their extraordinary size and rarity.

The following list combines size, historical importance, rarity and influence on the diamond industry.

1. Cullinan Diamond

Rough Weight: 3,106.75 carats
Found: South Africa, 1905
Polished By: Joseph Asscher
Current Location: British Crown Jewels

The Cullinan remains the largest gem quality rough diamond ever discovered. It was cut into nine principal diamonds and 96 smaller stones. The largest, Cullinan I, weighs 530.2 carats and remains one of the world’s most famous diamonds.

Estimated Value Today: US$2 billion+ (insurance estimates vary greatly).

2. Golden Jubilee Diamond

Polished Weight: 545.67 carats
Found: South Africa
Polished By: Gabriel Tolkowsky
Current Location: Thailand Royal Treasury

The largest faceted gem quality diamond in the world.

Estimated Value: US$100 million to US$250 million.

3. The Incomparable

Polished Weight: 407.48 carats
Found: Democratic Republic of Congo
Current Location: Private ownership

A fancy brownish yellow diamond renowned for its size and unusual triangular shape.

Estimated Value: US$20 million to US$50 million.

4. Cullinan I (Great Star of Africa)

Weight: 530.2 carats
Current Location: Sovereign’s Sceptre, British Crown Jewels.

5. Cullinan II (Second Star of Africa)

Weight: 317.4 carats
Current Location: Imperial State Crown.

6. Centenary Diamond

Weight: 273.85 carats
Found: Premier Mine, South Africa
Polished By: Master cutters employed by De Beers

One of the most perfect large diamonds ever cut.

Estimated Value: US$100 million+.

7. Koh-i-Noor

Weight: 105.6 carats
Current Location: British Crown Collection

Perhaps the most famous diamond in history, originating in India and passing through Mughal, Persian, Afghan and British hands.

Estimated Value: Effectively priceless.

8. Hope Diamond

Weight: 45.52 carats
Current Location: Smithsonian Institution

The world’s most famous blue diamond.

Estimated Value: US$250 million to US$350 million.

9. Lesedi La Rona

Rough Weight: 1,109 carats
Found: Botswana

One of the largest gem quality rough diamonds ever discovered. Purchased by Laurence Graff for US$53 million.

10. Sewelô

Rough Weight: 1,758 carats
Found: Botswana

Second largest rough diamond ever recovered. Acquired by Louis Vuitton and HB Antwerp.

11. Excelsior

Rough Weight: 995.2 carats
Found: South Africa

Largest diamond before the discovery of the Cullinan. Cut by the Asscher family.

12. Lesotho Promise

Rough Weight: 603 carats
Current Location: Cut into 26 diamonds by Graff.

13. Regent Diamond

Weight: 140.64 carats
Current Location: Louvre Museum

One of the finest historic diamonds in existence.

14. Orlov Diamond

Weight: 189.6 carats
Current Location: Russian Diamond Fund

15. Daria-i-Noor

Weight: Approximately 182 carats
Current Location: Iranian Crown Jewels.

16. Tiffany Yellow Diamond

Weight: 128.54 carats
Current Location: Tiffany & Co.

17. Taylor-Burton Diamond

Weight: 69.42 carats

Purchased by Richard Burton for Elizabeth Taylor.

18. Dresden Green

Weight: 41 carats
Current Location: Dresden Treasury, Germany

One of the world’s largest natural green diamonds.

19. Pink Star

Weight: 59.60 carats

World auction record holder among diamonds.

Sale Price: US$71.2 million.

20. Wittelsbach-Graff

Weight: 31.06 carats

Rare deep blue historic diamond.

21. Moussaieff Red

Weight: 5.11 carats

Largest known red diamond.

22. Oppenheimer Blue

Weight: 14.62 carats

One of the most valuable blue diamonds ever sold.

23. The Enigma

The Enigma diamond

Weight: 555.55 carats

Largest faceted black diamond ever sold publicly.

24. Black Falcon

Weight: 612.34 carats
Polished By: Peter Herbosch

The largest cut black diamond known today.

The Most Valuable Diamonds Today

Diamond	Estimated Value
Cullinan Collection	US$2 billion+
Hope Diamond	US$250m to US$350m
Golden Jubilee	US$100m to US$250m
Centenary	US$100m+
Pink Star	Sold for US$71.2m
Lesedi La Rona Rough	US$53m sale
Oppenheimer Blue	US$57.5m sale
Koh-i-Noor	Priceless

DCLA Commentary

The greatest diamonds are not always the largest. The Cullinan remains the most important diamond ever recovered because it transformed royal jewellery and demonstrated the highest standards of large diamond cutting. The Koh-i-Noor shaped centuries of political history, while the Hope Diamond became the world’s most famous coloured diamond.

From the Asscher family’s revolutionary work on the Cullinan in 1908 to Gabriel Tolkowsky’s masterpiece cutting of the Golden Jubilee, these extraordinary stones represent the pinnacle of both nature’s achievement and human craftsmanship. Together they form a unique record of diamond history and remain benchmarks for gemological excellence today.

DCLA Disclaimer: Diamond valuations shown are broad market estimates based on historical sales, insurance valuations, rarity and current market conditions. Many historically significant diamonds are considered priceless because they are held in national collections, museums or royal treasuries and would be unlikely ever to be offered for public sale.

Tuesday, 2 June 2026

Another Diamond Mine in Trouble, But Signs of Recovery Are Emerging

Petra diamonds

The global diamond industry has suffered another setback, with Petra Diamonds announcing a business rescue plan for its financially distressed Finsch Mine in South Africa. The move highlights the ongoing pressure facing natural diamond producers after several years of declining prices and weakening demand.

Under South African law, a business rescue practitioner can be appointed when a company is unlikely to meet its financial obligations within the next six months. Petra Diamonds said the decision was necessary to preserve the future of the operation and maximise value for stakeholders.

Petra Chief Executive Vivek Gadodia cited a combination of persistently weak diamond prices and the strength of the South African rand as key factors behind the mine’s financial difficulties. While mining costs have remained elevated, revenue from diamond sales has failed to keep pace, placing significant strain on profitability.

The Finsch Mine, one of South Africa’s most important diamond producing assets, now joins a growing list of operations worldwide that have faced closure, suspension, or restructuring during the deepest downturn the diamond industry has experienced in decades.

A major factor behind the crisis has been the rapid rise of laboratory grown diamonds. The dramatic fall in the retail price of synthetic stones has disrupted traditional diamond markets and placed downward pressure on natural diamond prices. As consumers increasingly compare natural and laboratory grown products, mining companies have been forced to navigate one of the most challenging periods in the history of the industry.

The impact has been felt across the entire diamond supply chain. Russian mining giant Alrosa continues to struggle with weak prices, compounded by geopolitical pressures and sanctions. The company’s share price recently fell to an all time low of 25 rubles, representing a decline of almost 50 per cent over the past year and more than 80 per cent over the past five years.

De Beers has also been forced to confront the new market reality. Parent company Anglo American has recorded a series of substantial write downs on its diamond business, including US$2.3 billion in the most recent reporting period. This follows impairments of US$2.9 billion in 2024 and US$2.6 billion in 2023, reflecting the severe decline in the value of diamond inventories and mining assets.

Despite the continued challenges, there are emerging signs that the worst of the crisis may be passing. Several major producers have significantly reduced rough diamond production over the past two years, helping to rebalance supply with demand. Inventories throughout the pipeline have also been gradually worked down, while the widening price gap between natural and laboratory grown diamonds is reinforcing the unique rarity and investment appeal of natural stones.

Industry analysts are increasingly suggesting that the natural diamond market may be approaching a turning point. Although a rapid recovery is unlikely, production cuts, reduced inventories, and stabilising consumer demand could lay the foundation for a healthier market in the years ahead.

For now, the restructuring of Petra’s Finsch Mine serves as another reminder of the profound transformation taking place within the global diamond industry. However, after years of falling prices and mine closures, there is growing evidence that the sector may finally be moving closer to a long awaited recovery.

Source: DCLA

Thursday, 9 April 2026

De Beers Group extends Desert diamonds into bridal with a new palette of lighter hues

De Beers Desert diamonds

De Beers Group today announces the next chapter of Desert diamonds: an extension of the industry-wide beacon concept into the bridal market, bringing a fresh interpretation of natural diamond engagement and wedding jewellery through a refined spectrum of warm, nature-made hues that reflect enduring love and personal expression.

First launched to consumers in 2025 as De Beers Group’s first new beacon in over a decade, Desert diamonds is supported by De Beers’ largest category marketing investment in more than ten years. Developed to galvanise the industry around a central idea, Desert diamonds celebrates the wild, natural origin of natural diamonds and the distinctive spectrum of tones that occur in nature — from warm whites to champagne hues — offering consumers a compelling, authentic story of individuality and connection.

Desert diamonds bridal campaign builds on the momentum

A natural evolution into bridal

The new bridal-focused chapter builds on the strong cultural momentum Desert diamonds has generated since launch, as warmer-toned diamonds become increasingly visible in popular culture and are worn by high‑profile figures across fashion, music and entertainment – including Bad Bunny, Doja Cat and Teyana Taylor.

This cultural momentum has also been reflected in some of the world’s most talked‑about bridal moments. Taylor Swift’s engagement ring, crafted by Kindred Lubeck, widely noted for its warm, candlelight diamond tone, has become a powerful cultural reference point for consumers.

This cultural interest has also translated into retail impact. Independent retailers who were involved in the first Desert diamonds campaign across the US reported increased foot traffic during the campaign’s initial run in 2025 and a rise in bridal‑led enquiries, with consumers increasingly interested in how these naturally warm tones could be applied to life’s most meaningful milestones — particularly engagement and wedding jewellery.

A lighter desert palette for modern bridal

Launching 13 April 2026 across the United States, Desert diamonds bridal is designed to meet growing interest in a more versatile, accessible spectrum of diamond colours — a softer, lighter desert palette that testing indicates resonates strongly with bridal audiences seeking authenticity and individuality in their choice of engagement and wedding jewellery.

The campaign will feature design archetypes including solitaire rings, three-stone rings and diamond bands and eternity-style pieces, created to highlight the natural variation and character of each stone.

An industry‑wide programme to inspire renewed desire

As with previous De Beers beacons — from the diamond bands to the tennis bracelet — Desert diamonds is designed as an industry‑wide programme with the goal of celebrating natural diamonds and reigniting consumer desire. De Beers has collaborated with over 60 designers across the industry to develop collections that interpret the desert‑inspired palette across both engagement and bridal jewellery, including Kindred Lubeck, designer of Taylor Swift’s engagement ring, with pieces available for future brides and couples to purchase.

Sandrine Conseiller, CEO of De Beers Brands & Diamond Desirability, said: “The success of Desert diamonds has reaffirmed something we’ve long believed: today’s consumers are drawn to what is real, rare and deeply personal. By celebrating the naturally occurring beauty and individuality of natural diamonds, the campaign struck a chord culturally and at retail, inviting a new generation to reconnect with the story behind their diamond.

Extending Desert diamonds into bridal is a natural next step. When people choose an engagement or wedding ring, they’re looking for authenticity — a symbol that feels true to who they are and the love they share. With this lighter, desert‑inspired palette, we’re offering couples a diamond that reflects their own story: shaped by nature, rich in character, and unlike anything else.”

De Beers’ Desert diamonds bridal campaign is supported by an integrated marketing programme across digital, social, outdoor and experiential channels. Through evocative storytelling, the campaign brings the Desert diamonds story into the context of love and commitment, drawing parallels between the individuality of each diamond and the unique journeys of the people who wear them. The creative spotlights how every diamond is shaped by nature and time, inviting brides to celebrate a commitment that is truly their own.