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Largest rough diamonds discovered worldwide by weight 2017

Largest rough diamonds ever discovered worldwide based on weight as of 2017 (in carats)

The data displays the biggest rough diamonds ever discovered worldwide based on their weight, as of 2017. The Sergio Diamond, found in Brazil in 1895 and believed by some experts to have come from space, is a black diamond that weighs some 3,167 carats in its rough form.

Sergio (Brazil, 1895)	3167
Cullinan Diamond (South Africa, 1905)	3106.75
Lesedi La Rona (Botsawana, 2015)	1111
Excelsior Diamond (South Africa, 1893)	995.2
Star of Sierra Leone (Sierra Leone, 1972)	969
Incomparable (Congo, 1989)	890
Constellation (Botswana, 2015)	813
Koh-i-Noor (India, 13th century)	793
Millennium Star (Democratic Republic of Congo, 1990)	777
Woyie River (Sierra Leone, 1945)	770

Largest rough diamonds discovered worldwide by weight 2017

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