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Maurice Tempelsman
Maurice Tempelsman (August 26, 1929 – August 23, 2025) was a Belgian-American businessman, diamond magnate and merchant. He was the longtime companion of Jacqueline Kennedy Onassis, the 35th First Lady of the United States.
Maurice Tempelsman was born on August 26, 1929, in Antwerp, Belgium, the son of Leon and Helene Tempelsman, both Orthodox Jews, in a Yiddish-speaking family in Antwerp's Jewish community. In 1940, Tempelsman and his family emigrated to the United States as Nazi Germany invaded Belgium. When he was 16, Tempelsman began working for his father, a diamond broker. He attended New York City's public schools and New York University.
He was also a general partner of Leon Tempelsman & Son, an investment company specializing in real estate and venture capital.
In 1950, Tempelsman created a new marketing niche by persuading the U.S. government to stockpile African diamonds for industrial and military purposes, with himself as the middleman. In 1957, at the age of 27, he and his lawyer, Adlai Stevenson, traveled to Africa, where Tempelsman had begun forging ties with leaders. His contacts eventually ranged from South African anti-apartheid politician Oliver Tambo to Zaire's kleptocratic dictator, Mobutu Sese Seko, and the influential Oppenheimer diamond family. Declassified memos and cables between former U.S. presidents and State Department officials from the 1950s to the 1990s have named Tempelsman with direct input in the destabilization of Congo, Sierra Leone, Angola, Zimbabwe, Namibia, Rwanda, and Ghana. He was involved in the overthrow of Ghana's first elected president, Kwame Nkrumah, the CIA-backed assassination of Congo's first-elected prime minister, Patrice Lumumba, and the cover-up of CIA covert support for Mobutu.
Tempelsman was chairman of the board of directors of Lazare Kaplan International Inc. (LKI), the largest diamond company in the United States, noted for its "ideal cut" diamonds sold worldwide under the brand name Lazare Diamonds. Tempelsman was one of fewer than 90 "sightholders" in the world, which means that 10 times a year he was permitted to buy diamonds directly from the powerful De Beers cartel in the City of London. Because De Beers was a virtual monopoly, for many years it could not operate legally in the United States.
Tempelsman maintained relations with political and business leaders, in particular government leaders in Africa and Russia, and leading figures in the U.S. Democratic Party. His extensive political contacts and monetary contributions often provided him with access and prestige in those markets, as was the case during the presidency of Bill Clinton. From 1993 to 1997, Tempelsman visited the White House at least ten times, met privately with Hillary Clinton on two occasions, vacationed with the Clintons and the Kennedy family in Martha's Vineyard, and flew to Moscow and back with President Clinton on Air Force One.
In Southern Africa, Tempelsman played a key role in negotiations between hostile governments and companies engaging in diamond exploration. He met with Mobutu Sese Seko, to assist the regime's business dealings withDe Beers. In the 1960s Tempelsman hired as his business agent the CIA station chief in Kinshasa, Larry Devlin, who helped put Mobutu in power and afterward served as his personal adviser. From March 3, 1977, Tempelsman briefly held the title of honorary consul general for Zaire, now known as the Democratic Republic of Congo (DRC), at the DRC's consular offices in New York City. In addition to the DRC, Tempelsman played a key role in the diamond industries of Angola, Botswana, Namibia, and Sierra Leone.
Tempelsman served as chairman of the Corporate Council on Africa (CCA) from 1999 to 2002 and again from 2007 to 2008, after which he was named chairman emeritus. An example of his work with the CCA involved assisting government leaders with establishing the New Partnership for Africa's Development. Tempelsman was a board member of the Southern African Enterprise Development Fund, and past chairman and long-serving board member of the Africa-America Institute.
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Maurice Tempelsman
Maurice Tempelsman (August 26, 1929 – August 23, 2025) was a Belgian-American businessman, diamond magnate and merchant. He was the longtime companion of Jacqueline Kennedy Onassis, the 35th First Lady of the United States.
Maurice Tempelsman was born on August 26, 1929, in Antwerp, Belgium, the son of Leon and Helene Tempelsman, both Orthodox Jews, in a Yiddish-speaking family in Antwerp's Jewish community. In 1940, Tempelsman and his family emigrated to the United States as Nazi Germany invaded Belgium. When he was 16, Tempelsman began working for his father, a diamond broker. He attended New York City's public schools and New York University.
He was also a general partner of Leon Tempelsman & Son, an investment company specializing in real estate and venture capital.
In 1950, Tempelsman created a new marketing niche by persuading the U.S. government to stockpile African diamonds for industrial and military purposes, with himself as the middleman. In 1957, at the age of 27, he and his lawyer, Adlai Stevenson, traveled to Africa, where Tempelsman had begun forging ties with leaders. His contacts eventually ranged from South African anti-apartheid politician Oliver Tambo to Zaire's kleptocratic dictator, Mobutu Sese Seko, and the influential Oppenheimer diamond family. Declassified memos and cables between former U.S. presidents and State Department officials from the 1950s to the 1990s have named Tempelsman with direct input in the destabilization of Congo, Sierra Leone, Angola, Zimbabwe, Namibia, Rwanda, and Ghana. He was involved in the overthrow of Ghana's first elected president, Kwame Nkrumah, the CIA-backed assassination of Congo's first-elected prime minister, Patrice Lumumba, and the cover-up of CIA covert support for Mobutu.
Tempelsman was chairman of the board of directors of Lazare Kaplan International Inc. (LKI), the largest diamond company in the United States, noted for its "ideal cut" diamonds sold worldwide under the brand name Lazare Diamonds. Tempelsman was one of fewer than 90 "sightholders" in the world, which means that 10 times a year he was permitted to buy diamonds directly from the powerful De Beers cartel in the City of London. Because De Beers was a virtual monopoly, for many years it could not operate legally in the United States.
Tempelsman maintained relations with political and business leaders, in particular government leaders in Africa and Russia, and leading figures in the U.S. Democratic Party. His extensive political contacts and monetary contributions often provided him with access and prestige in those markets, as was the case during the presidency of Bill Clinton. From 1993 to 1997, Tempelsman visited the White House at least ten times, met privately with Hillary Clinton on two occasions, vacationed with the Clintons and the Kennedy family in Martha's Vineyard, and flew to Moscow and back with President Clinton on Air Force One.
In Southern Africa, Tempelsman played a key role in negotiations between hostile governments and companies engaging in diamond exploration. He met with Mobutu Sese Seko, to assist the regime's business dealings withDe Beers. In the 1960s Tempelsman hired as his business agent the CIA station chief in Kinshasa, Larry Devlin, who helped put Mobutu in power and afterward served as his personal adviser. From March 3, 1977, Tempelsman briefly held the title of honorary consul general for Zaire, now known as the Democratic Republic of Congo (DRC), at the DRC's consular offices in New York City. In addition to the DRC, Tempelsman played a key role in the diamond industries of Angola, Botswana, Namibia, and Sierra Leone.
Tempelsman served as chairman of the Corporate Council on Africa (CCA) from 1999 to 2002 and again from 2007 to 2008, after which he was named chairman emeritus. An example of his work with the CCA involved assisting government leaders with establishing the New Partnership for Africa's Development. Tempelsman was a board member of the Southern African Enterprise Development Fund, and past chairman and long-serving board member of the Africa-America Institute.