# De Beers and the diamond model of extraction

How diamonds set the template for mineral extraction in Africa: the Kimberley rush, Rhodes and Barnato's consolidation of De Beers, the migrant-labor compound system later generalized under apartheid, the Oppenheimers and Anglo American, the global diamond cartel and its manufactured scarcity, and the blood-diamond wars that led to the Kimberley Process.

*This story part of: Production and labor*
*The Congo: from Leopold to the resource wars parallel this story*
*The Scramble for Africa parallel this story*
*The resource curse: how the South fed the North parallel this story*

## c. 1867 — Eureka Diamond found on the Orange River

A 21-carat diamond, later called the Eureka, was found by a boy named Erasmus Jacobs near the Orange River. It was the first diamond confirmed in South Africa and set off initial prospecting along the river.

## c. 1869 — Star of South Africa diamond found

An 83.5-carat diamond found near the Orange River was sold for a large sum and publicized in London, proving South Africa held commercially significant diamond deposits. The find triggered a much larger wave of prospectors heading inland.

## c. July 1871 — Diamonds found at Colesberg Kopje, sparking the New Rush

Diamonds were discovered on a small hill on the De Beers brothers' farm, prompting thousands of diggers to converge on the site within months. The hill was mined so intensively by individual claim holders that it became the open pit later known as the Big Hole.

## 27 October 1871 — Britain annexes Griqualand West

The British Crown annexed the diamond-bearing territory around Kimberley, overriding competing Boer republic and African claims to the land. Colonial administration of the diggings followed, formalizing British control over the diamond fields.

## c. 1871 — Cecil Rhodes arrives at the Kimberley diggings

Cecil Rhodes, an 18-year-old English immigrant, arrived at the diamond diggings and began working claims and running water pumps for other miners. His early profits in Kimberley became the financial base for his later mining and political career.

## 1873 — Kimberley diamond fields named after Lord Kimberley

The mining camp at Colesberg Kopje and the surrounding diggings were officially renamed Kimberley, after the British Colonial Secretary, the Earl of Kimberley. By this point the diggings held thousands of small claims worked by both white diggers and black laborers.

## c. 1873 — Barney Barnato arrives in Kimberley

Barney Barnato, a London-born entrepreneur, arrived at the Kimberley diggings and began buying up claims. He would become Cecil Rhodes's chief rival in the consolidation of the diamond fields over the following fifteen years.

## c. 1874 — Deepening pits force consolidation of Kimberley claims

As individual claims were dug deeper, cave-ins, flooding, and the cost of hauling ore up steep pit walls made small-scale digging increasingly unworkable. Wealthier operators began buying out adjoining claims to consolidate mining operations, a process that accelerated through the 1870s and 1880s.

## 1880 — Kimberley Central Diamond Mining Company formed

Barney Barnato merged several claims he had acquired into the Kimberley Central Diamond Mining Company, consolidating his hold on the Kimberley mine. It became the dominant company at the Kimberley pit and Rhodes's main obstacle to full monopoly.

## 1 April 1880 — De Beers Mining Company founded by Cecil Rhodes

Cecil Rhodes and Charles Rudd formed the De Beers Mining Company, named after the De Beers brothers whose farm sat atop the diamond deposits, to consolidate claims at the De Beers mine. It became the vehicle Rhodes used over the next eight years to buy out rival claim holders.

## c. 1884 — Pass laws formalized for African mineworkers in Kimberley

Colonial authorities and mine owners in Griqualand West extended pass-law requirements to control the movement of African laborers to and from the diamond mines. Workers had to carry documents identifying their employer and permission to travel, restricting their freedom outside the compounds.

## c. 1885 — Closed compound system introduced for black mineworkers

Kimberley mine owners, led by De Beers, began confining African laborers to closed compounds for the duration of their contracts, ostensibly to stop diamond theft. Workers lived in fenced barracks, were searched on exit, and had their movements controlled, a system that became the template for compound labor across southern African mining.

## c. 1887 — Rhodes and Rothschild financing secure the De Beers buyout campaign

Cecil Rhodes secured backing from the London merchant bank N M Rothschild & Sons to fund his takeover bid for Barnato's Kimberley Central company. The financing gave Rhodes the capital needed to outbid Barnato for the remaining independent claims.

## 12 March 1888 — Founding of De Beers

Cecil Rhodes consolidates the Kimberley diamond mines into De Beers Consolidated Mines. The company controls most of the world's diamond supply for the next century.

## 13 March 1888 — De Beers Consolidated Mines formed, merging Rhodes and Barnato's holdings

After a bidding war, Cecil Rhodes and Barney Barnato merged their rival companies into De Beers Consolidated Mines, giving the new company control of nearly all diamond production in the Kimberley area. The merger effectively ended the era of open competition among individual claim holders and created a near-total monopoly over South African diamond output.

## 29 October 1889 — British South Africa Company granted royal charter

Cecil Rhodes obtained a royal charter for his British South Africa Company, empowering it to acquire mineral rights, administer territory, and raise its own police force north of the Limpopo River. Rhodes used profits and prestige from De Beers to finance and legitimize the charter, extending the diamond fortune into a vehicle for territorial expansion.

> "Troops of the South African Com- pany, which was granted a royal charter in 1889"
> — Neo-Colonialism: The Last Stage of Imperialism, p. 168-173

## 1890 — London Diamond Syndicate formed to control diamond sales

A syndicate of London diamond merchants agreed with De Beers to buy its entire output at fixed prices and manage the pace at which diamonds reached the market. The arrangement let De Beers regulate global supply without directly running the retail trade, an early version of the single-channel marketing system it would use for the next century.

## 1890 — Rhodes becomes Prime Minister of the Cape Colony

Having made a diamond and gold fortune, Cecil Rhodes becomes Prime Minister of the Cape Colony. He uses the office to expand British territory northward and to shape policy in the interests of the mining industry.

## September 1890 — British South Africa Company occupies Mashonaland

The Pioneer Column, organized and funded by Rhodes's British South Africa Company, occupied Mashonaland and raised the company flag at Fort Salisbury. The occupation, financed substantially by De Beers-derived wealth, opened the territory that would become Southern Rhodesia to settler colonization.

## October 1893 — First and Second Matabele Wars

British South Africa Company forces fought the Ndebele kingdom, using Maxim guns to defeat larger Ndebele forces and seize their land and cattle. A second uprising in 1896-97 was likewise suppressed, cementing company and settler control over what became Southern Rhodesia.

## December 1895 — Jameson Raid

A raiding party led by Leander Starr Jameson, backed by Cecil Rhodes, invaded the Transvaal in a failed attempt to trigger an Uitlander uprising against the Boer government of Paul Kruger. The raid collapsed within days and its failure forced Rhodes to resign as Cape Prime Minister. The episode badly damaged British-Boer relations and is widely seen as a key step toward the Second Anglo-Boer War.

## 14 October 1899 — Siege of Kimberley during the Second Boer War

Boer forces besieged Kimberley for 124 days, trapping Cecil Rhodes inside the town along with the De Beers mining operations. De Beers workshops were converted to produce an armored train and an artillery piece, nicknamed Long Cecil, for the town's defense until British forces relieved the siege in February 1900.

## 1902 — Ernest Oppenheimer arrives in Kimberley

Ernest Oppenheimer, a young diamond buyer from a German-Jewish trading family, arrived in Kimberley to represent the London diamond merchant firm A. Dunkelsbuhler & Co. He began building relationships in the diamond trade that he would later use to challenge De Beers's control.

## 26 March 1902 — Death of Cecil Rhodes

Cecil Rhodes died at his seaside cottage near Cape Town at age 48. His will established the Rhodes Scholarship and left instructions reflecting his belief in British imperial expansion, and his death left De Beers under the control of the board he had built.

## 1908 — Diamonds discovered in German South West Africa

A railway worker found diamonds in the sand near Lüderitz, setting off a rush that revealed extremely rich alluvial diamond deposits along the Namibian coast. German colonial authorities restricted the area, and control of these deposits later passed to companies connected to Ernest Oppenheimer.

## 1912 — Ernest Oppenheimer becomes mayor of Kimberley

Ernest Oppenheimer was elected mayor of Kimberley, giving him political standing in the diamond town alongside his growing commercial interests. He used the position and his trade contacts to expand his influence over South African mining finance.

## 25 September 1917 — Anglo American Corporation of South Africa founded

Ernest Oppenheimer founded Anglo American Corporation with British and American financial backing, initially to invest in Witwatersrand gold mines. The company became the base from which Oppenheimer would later mount his takeover of De Beers.

## c. 1919 — Anglo American acquires major diamond interests in South West Africa

Anglo American, through related companies, took control of the rich alluvial diamond fields in South West Africa that had been developed under German rule. This gave Oppenheimer a diamond-producing base independent of De Beers, strengthening his position for a future merger.

## 1929 — Ernest Oppenheimer becomes chairman of De Beers

After years of buying De Beers shares and negotiating with the company's directors, Ernest Oppenheimer was elected chairman of De Beers Consolidated Mines. The takeover merged Anglo American's diamond interests with De Beers, placing most of the world's diamond production under Oppenheimer family control for the rest of the century.

## 1930 — Diamond Corporation formed to manage global diamond sales

Oppenheimer created the Diamond Corporation to buy up diamond production from De Beers and outside producers and control the flow of stones to the market during the Depression-era collapse in demand. It became the direct forerunner of the Central Selling Organisation.

## 1934 — Central Selling Organisation established

De Beers formally organized its marketing arm as the Central Selling Organisation, a single channel through which the great majority of the world's rough diamonds were sold to a limited list of approved dealers. The CSO let De Beers stockpile diamonds and restrict supply to keep prices high, a cartel arrangement that lasted for most of the twentieth century.

## 1947 — N.W. Ayer launches the 'A Diamond Is Forever' campaign

De Beers hired the advertising agency N.W. Ayer, and copywriter Frances Gerety coined the slogan 'A Diamond Is Forever' for a campaign built around linking diamonds inseparably to engagement and marriage. The campaign is widely credited with creating the modern expectation that an engagement requires a diamond ring, particularly in the United States, turning a stockpiled commodity into an object of manufactured cultural necessity.

## 1948 — Apartheid formalized in South Africa, extending mine labor controls nationwide

The National Party's election victory formalized apartheid, extending pass laws, labor compounds, and racial job restrictions that had originated in the Kimberley and Witwatersrand mines into comprehensive national policy. Historians have described the mining industry's migrant-labor and compound system as a working model that apartheid legislation later generalized across the economy.

## November 1975 — Angolan civil war begins, drawing in diamond-funded factions

Following independence from Portugal, Angola descended into a civil war between the MPLA government and UNITA rebels that lasted, with interruptions, until 2002. UNITA financed much of its war effort by controlling alluvial diamond fields in the northeast and selling stones into international markets, including through De Beers buying channels for part of the conflict.

## 23 March 1991 — Sierra Leone civil war begins

The Revolutionary United Front launched an insurgency against the Sierra Leonean government, beginning an eleven-year civil war marked by mass amputations and the use of child soldiers. The RUF financed its campaign chiefly by seizing diamond-mining areas and smuggling rough diamonds out through neighboring Liberia.

## 12 June 1998 — UN Security Council bans purchase of UNITA diamonds

The UN Security Council adopted Resolution 1173, prohibiting the direct or indirect import of diamonds from Angola not certified by the government, in an effort to cut off UNITA's main source of funding. It was one of the first international measures explicitly targeting conflict diamonds.

## December 1998 — Global Witness report exposes the diamond trade's role in African wars

The advocacy group Global Witness published 'A Rough Trade,' documenting how diamonds mined in rebel-held Angola were being sold through De Beers's buying network and financing UNITA's war effort. The report was widely credited with putting the term 'conflict diamonds' into public use and pressuring the industry toward reform.

## March 2000 — Fowler Report details sanctions-busting diamond networks

A UN Security Council panel chaired by Canadian ambassador Robert Fowler published a report naming specific governments, arms dealers, and diamond buyers involved in evading sanctions to keep UNITA supplied with weapons in exchange for diamonds. The report increased international pressure for an industry-wide certification system for rough diamonds.

## May 2000 — Kimberley Process talks begin in South Africa

Southern African diamond-producing states, industry representatives, and NGOs met in Kimberley to negotiate a certification scheme that would keep conflict diamonds out of the legitimate trade. The talks, named after the town, led to a series of negotiations completed over the following two years.

## c. 2000 — De Beers ends the Central Selling Organisation single-channel model

Facing antitrust pressure and competition from independent producers such as Russia's Alrosa and new Canadian mines, De Beers began dismantling the Central Selling Organisation's stockpile-and-control system in favor of a 'Supplier of Choice' model selling to a smaller set of approved clients at set prices. The change ended De Beers's decades-long role as the buyer of last resort for the entire world diamond supply.

## 1 January 2003 — Kimberley Process Certification Scheme launched

The Kimberley Process Certification Scheme took effect, requiring participating countries to certify shipments of rough diamonds as conflict-free and to trade only with other participating members. Critics have since argued the scheme's narrow definition of 'conflict diamond' and weak enforcement have let it miss diamonds tied to state violence and labor abuse outside civil-war contexts.

## July 2004 — De Beers pleads guilty to price-fixing in the United States

De Beers pleaded guilty to a US federal charge of conspiring to fix prices of industrial diamonds and paid a 10 million dollar fine, ending decades of the company avoiding direct business in the United States to escape antitrust prosecution. The settlement let De Beers finally operate openly in the US retail market.

## November 2011 — Anglo American acquires majority control of De Beers

Anglo American plc agreed to buy the Oppenheimer family's 40 percent stake in De Beers for about 5.1 billion dollars, raising its holding to 85 percent and ending direct Oppenheimer family control of the company after 82 years. The Botswana government retained the remaining 15 percent through its long-standing partnership with De Beers.