List of largest rough diamonds
Carats Name Country Mine Date Current owner
3167 Sergio ( carbonado ) Brazil , possibly from outer space Found above ground in Lençóis 1895 Eventually sold to I. K. Gulland of London , where it was broken up into small pieces as industrial diamond drills
3106.75 Cullinan Diamond South Africa Premier Mine 1905 British Crown ( I and II ) and Elizabeth II ( III-IX )
1758 Sewelô Botswana Karowe Mine 2019 Louis Vuitton
1109 Lesedi La Rona Botswana Karowe Mine 2015 Graff Diamonds
995.20 Excelsior Diamond South Africa Jagersfontein Mine 1893 Robert Mouawad
969 Star of Sierra Leone Sierra Leone Diminco Mine 1973 Harry Winston
910 Lesotho Legend Lesotho Letseng Mine 2018 Samir Gems and Taché Diamonds
890 Incomparable Diamond Democratic Republic of the Congo Societé Minière de Bakwanga 1984 Louis Glick
813 The Constellation Botswana Karowe Mine 2015 Nemesis International DMCC
793 Koh-i-Noor India Kollur Mine 13th Century British Crown
777 Millennium Star Democratic Republic of the Congo Mbuji-Mayi 1990 De Beers
770 The Woyie River Sierra Leone Woyie River 1945
755 The Golden Jubilee South Africa Premier Mine 1985 Government of Thailand
726.6 The Vargas Brazil San Antonio River 1938
726 The Jonker South Africa Elandsfontein 1934
709 Peace Diamond Sierra Leone Artisanal mine 2017 Graff Diamonds ( bought for US $ 6.5m )
650.8 The Jubilee South Africa Jagersfontein Mine 1895 Robert Mouawad
620 The Sefadu Sierra Leone Diminco Mine 1970 Lazare Kaplan
616 The Kimberley Octahedron South Africa Dutoitspan Mine 1964 De Beers
603 Lesotho Promise Lesotho Letseng Mine 2006 Graff Diamonds
This is a partial list of the largest non-synthetic diamonds with a rough stone ( uncut ) weight of over 200 carats ( 40 grams ) . [ 1 ] The list is not intended to be complete – e.g. , the Cullinan ( formerly Premier ) mine alone has produced 135 diamonds larger than 200 carats since mining commenced . [ 2 ] [ citation needed ] . De Beers generally does not publish information relating to large diamond discoveries .
This is a partial list of the largest non-synthetic diamonds with a rough stone (uncut) weight of over 200 carats (40 grams). The list is not intended to be complete - e.g., the Cullinan (formerly Premier) mine alone has produced 135 diamonds larger than 200 carats since mining commenced. [citation needed]. De Beers generally does not publish information relating to large diamond discoveries.