Ernest Oppenheimer (1880 - 1957)
Why Kimberley Matters
Over the years, we have noticed that many of our guests—whether visiting Kimberley for business or leisure—have wondered why this remarkable city has played such an important role in South Africa's history over the past 160 years.
These pages invite you on a coffee-table journey through Kimberley's past, from the discovery of the Eureka Diamond in 1867 and the Great Diamond Rush, through wars, political change and the rise of the world's diamond industry, to the city we know today. They are not intended to be an academic history, but rather an enjoyable introduction to the people, places and events that shaped Kimberley.
So, make yourself comfortable, pour a cappuccino or a cup of chai, and enjoy exploring the remarkable story of one of South Africa's most fascinating cities.
💎 1869: The Star of South Africa Diamond
💎 1869–1871 South Africa's Great Diamond Rush
💎 1867–1914: From Eureka to the Big Hole
💎 1914–1945: From Diamonds to War
💎 1945–1990: From Oppenheimer to Democracy
The Industrialist Who Reshaped the Diamond World
When twenty-two-year-old Ernest Oppenheimer arrived in Kimberley in 1902, he could hardly have imagined that he would one day become one of the most influential figures in the global mining industry.
Born on 22 May 1880 in Friedberg, Germany, he was the son of Edward Oppenheimer, a cigar merchant. At the age of seventeen he entered the London diamond brokerage of Dunkelsbuhler & Company, where his intelligence, determination and understanding of the diamond trade quickly impressed his employers.
In 1902, the company sent the young Oppenheimer to Kimberley as its representative to buy diamonds directly from the world's most famous diamond fields. What began as a business posting soon became the foundation of an extraordinary career. Kimberley became his home, and the city would shape the rest of his life.
Other Voices During the Diamond Rush
Cecil Rhodes – Mining magnate and empire builder
Barney Barnato – Diamond entrepreneur and Rhodes' greatest rival
Charles Rudd – Business partner and mining pioneer
John Orr – Merchant, philanthropist and civic leader
Rudyard Kipling – Young journalist and future literary giant
A Young Civic Leader
Oppenheimer quickly became involved in Kimberley's civic life. In 1906, he married Mary Lina Pollock, and the couple established their family home at 7 Lodge Road in Belgravia. Their eldest son, Harry, who would later become one of South Africa's best-known industrialists, was born there in 1908. That same year Ernest was elected to Kimberley's City Council. Four years later, at just thirty-two years of age, he became Mayor of Kimberley.
The outbreak of the First World War presented new challenges. Oppenheimer helped establish the Kimberley Regiment and organised labour for the construction of the strategic railway linking Upington with the border of what is now Namibia.
Yet the war also brought personal hardship. Despite becoming a loyal British subject, his German surname attracted suspicion during a period of intense anti-German feeling. In 1916, rioters attacked and stoned his Kimberley home—a reminder that prejudice often ignored loyalty or citizenship.
7 Lodge Road, named “Friedberg” after the German town where Ernest Oppenheimer was born. The architect was D.W. Greatbatch.
Building Anglo American
Although diamonds remained central to his career, Oppenheimer recognised that southern Africa possessed far greater mineral wealth. Working closely with American mining engineer William Lincoln Honnold, he believed the rich gold deposits of the Witwatersrand could support a major new mining enterprise.
With financial backing from the American banker J. P. Morgan, they founded the Anglo American Corporation of South Africa in September 1917. What began as an ambitious mining company would grow into one of the largest and most influential corporations in the world, with interests spanning gold, diamonds, copper, coal, platinum, and many other industries.
Returning to De Beers
To understand Ernest Oppenheimer's greatest achievement, it helps to understand the company he inherited.
By the late nineteenth century Cecil Rhodes had created De Beers Consolidated Mines, bringing together most of Kimberley's diamond mines into a single company. Through agreements with London's leading diamond merchants, De Beers controlled both the supply and marketing of diamonds, helping stabilise prices in what could otherwise have been a volatile market.
After the First World War, however, that carefully balanced system began to falter. Diamond production exceeded global demand. Prices collapsed, mines closed, and thousands of workers lost their livelihoods. The future of Kimberley's most important industry was uncertain. Oppenheimer believed the answer lay not in producing more diamonds, but in managing how they reached the market.
In 1926, he joined the board of De Beers and, three years later, became Chairman.
Saving the Diamond Industry
As Chairman of De Beers, Oppenheimer transformed the way diamonds were sold worldwide. Following the principles first developed during the Rhodes era, he strengthened a centralised marketing system that carefully balanced supply with consumer demand. The creation of the Central Selling Organisation (CSO) brought together many of the world's largest diamond producers, allowing diamonds to be marketed through a single coordinated channel.
When the Great Depression struck in the 1930s, demand for luxury goods collapsed. Oppenheimer made difficult decisions, temporarily closing mines and reducing production rather than flooding the market with unwanted diamonds. By establishing the Diamond Corporation in 1930, he further strengthened international cooperation among diamond producers. His policies stabilised prices during one of the most severe economic crises in modern history and helped secure the long-term future of the global diamond industry.
Expanding a Mining Empire
Oppenheimer's influence soon extended well beyond Kimberley. He recognised the potential of the newly discovered diamond fields of German South West Africa (today Namibia) and played a leading role in developing the Consolidated Diamond Mines. Anglo American also expanded rapidly into gold mining on the East Rand and in the Orange Free State, while its copper operations in Northern Rhodesia (now Zambia) became increasingly important.
Some historians regard Oppenheimer as relatively progressive for his era, noting that he introduced improved housing for African mineworkers and their families on certain copper mining operations in Northern Rhodesia.
Nevertheless, historians also acknowledge that the mining industry remained deeply unequal and operated within the broader racial structures of colonial and later South African society. Like many industrialists of his generation, Oppenheimer's legacy remains both significant and complex.
Businessman, Politician and Philanthropist
Oppenheimer also played an active role in public life. From 1924 until 1938, he represented Kimberley in Parliament as a member of General Jan Smuts' South African Party, concentrating primarily on financial and economic matters.
His business experience led to appointments on numerous commissions, including those involved in establishing the South African Reserve Bank. He served as a director of Barclays Bank and the British South Africa Company, while also chairing Anglo American and De Beers.
Ernest Oppenheimer
Beyond business, Oppenheimer believed strongly in education and scientific research. He supported universities in both South Africa and Britain, helping establish an engineering department at Stellenbosch University and funding colonial research at Oxford University. His contributions earned him several honorary doctorates and international recognition.
Did You Know?
Sir Ernest Oppenheimer lived at 7 Lodge Road in Belgravia, just 900 metres from Solomon Edwardian Guest House. His son, Harry Oppenheimer, who later led both De Beers and Anglo American, was born there in 1908.
A Complex Legacy
Few individuals have had a greater influence on Kimberley's twentieth-century history than Ernest Oppenheimer. He transformed De Beers into a truly global enterprise, built Anglo American into one of the world's largest mining companies and helped shape the modern international diamond trade. His business innovations stabilised an industry that had faced repeated crises and secured Kimberley's position as one of the world's most important diamond centres for decades.
At the same time, historians continue to debate aspects of his legacy. While many praise his business vision and contributions to education, others point to the inequalities that characterised the mining industry during his lifetime and question the broader social consequences of the economic systems he helped lead.
Like many influential historical figures, Ernest Oppenheimer's legacy cannot be reduced to simple praise or criticism. It is a story of remarkable achievement, immense influence and enduring historical debate.
The bust of Sir Ernest, standing on a marble colonnade, was unveiled in the Oppenheimer Gardens on 20 November 1962. This is a photo of the original bust taken in 2006. Following the theft, the bust has been replaced with a replica.
A Kimberley Family
Although Ernest Oppenheimer eventually moved to Johannesburg, Kimberley remained central to his family's story. His son Harry Oppenheimer, born in Kimberley in 1908, succeeded him as Chairman of both De Beers and Anglo American and became one of South Africa's most influential business leaders.
Together, father and son shaped the diamond industry for much of the twentieth century, leaving a legacy that continues to influence Kimberley and the global diamond trade today.
Sir Ernest Oppenheimer died in 1957 at the age of seventy-seven, leaving his business empire to Harry, who would guide it through a new era of international growth and political change.
Portrait of Ernest Oppenheimer
Continue Exploring Kimberley
Whether your interests lie in history, culture, dining, shopping, entertainment, or simply discovering somewhere new, we hope these guides help you make the most of your time in Kimberley. If you're planning a visit to the City that Sparkles, Solomon Edwardian Guest House offers elegant accommodation in the historic suburb of Beaconsfield. Ideally situated for business and leisure travellers alike, The Solomon provides a comfortable base from which to explore.