Dedicated WebPage for an Up-to-date Table on Largest Gem-Quality Rough Diamonds Discovered in the World
Our website has an extensive resource database on the history of the diamond trade, that also includes well written articles on the history of the famous diamonds in the world. More than 200 famous diamonds have been treated extensively under this section and are listed in alphabetical order on two webpages titled Famous Diamonds, Gemstones and Pearls. A third webpage listing additional famous diamonds have been created, and given the title “More Famous Diamonds”
In this webpage we are publishing a table of largest gem-quality rough diamonds discovered in the various diamond mines of the world throughout history. The diamonds are arranged in descending order of carat weights on the table, and apart from the weight of the diamonds also gives information on the country of discovery, year of discovery, color of the diamond and overall position on the table. The table would be updated as more significant large diamonds are unearthed.

List of Largest Gem-Quality Rough diamonds discovered in the world arranged in descending order of carat weights
Last updated by Lareef A. Samad on Saturday, August 13, 2017
Name | Country of discovery | Year of discovery | Carat Weight | Color | Position |
Cullinan | South Africa | 1905 | 3,106 | Colorless/White | 1 |
Lesedi La Rona | Karowe Mine Botswana | 2015 | 1,109 | Colorless/White | 2 |
Excelsior | South Africa | 1893 | 995 | Colorless /White | 3 |
Star of Sierra Leone | Sierra Leone | 1972 | 969.80 | Colorless/White | 4 |
Incomparable | Zaire | 1984 | 890 | Brownish-yellow | 5 |
Constellation | Karowe Mine Botswana | 2015 | 813 | Colorless/White | 6 |
Great Mogul | India | 1650 | 787 | Colorless/White | 7 |
Millennium Star | Zaire | 1990 | 777 | Colorless/White | 8 |
Woyie River | Sierra Leone | 1945 | 770 | Colorless/White | 9 |
Golden Jubilee | South Africa | 1985 | 755 | Yellowish-brown | 10 |
President Vargas | Brazil | 1938 | 726.60 | Colorless/White | 11 |
Jonker | South Africa | 1934 | 726 | Colorless/White | 12 |
Jubilee-Reitz | South Africa | 1895 | 650.80 | Colorless/White | 13 |
Unnamed | South Africa | 1984 | 620.14 | 14 | |
Sefadu | Sierra Leone | 1970 | 620 | Colorless/White | 15 |
Kimberley Octahedral | South Africa | 1964 | 616 | Yellow | 16 |
Lesotho Promise | Lesotho | 2006 | 603 | Colorless/White | 17 |
Lesotho Brown | Lesotho | 1967 | 601 | Brown | 18 |
Centenary | South Africa | 1986 | 599 | Colorless/White | 19 |
De Grisogono | Central Africa | Probably in the 1950s | 587 | Black | 20 |
Letseng Star | Lesotho | 2011 | 553 | Colorless/White | 21 |
Unnamed Petra Diamond | South Africa | 2009 | 507 | Colorless/White | 22 |
Letseng Legacy | Lesotho | 2007 | 493 | Colorless/White | 23 |
Light of Letseng | Lesotho | 2008 | 478 | Colorless/White | 24 |
Jacob-Victoria | South Africa | 1884 | 457.50 | Colorless/White | 25 |
Zale light of peace | Sierra Leone | 1969 | 435 | Colorless/white | 26 |
De Beers | South Africa | 1888 | 428.50 | Yellow | 27 |
Niarchos | South Africa | 1954 | 426.50 | Colorless/White | 28 |
©Internet Stones.com
Please do not copy our tables. We may be compelled to inform the search engines or file a DMCA request if our content and tables are plagiarised.
Important Information that can be gathered from the above table
1) The 3,106-carat Cullinan rough diamond discovered in 1905 from the Premier Diamond Mine in South Africa remains the largest ever gem-quality rough diamond discovered.
2) The 787-carat Great Mogul Diamond discovered in India in 1650, remained the largest rough diamond ever discovered for 243 years, until the discovery of the 995-carat excelsior rough diamond in the Jagersfontein diamond mine in South Africa in 1893.
3) The 995-carat Excelsior rough diamond held the unique distinction of being the world’s largest gem-quality rough diamond ever discovered for a period of 12 years from 1893 to 1905 until the discovery of the enormous Cullinan rough diamond.
4) The 770-carat Woyie River discovered in 1945, was the 4th-largest rough diamond at the time of its discovery.
5) The 726.60-carat President Vargas discovered in Brazil in 1938, was the 4th-largest rough diamond at the time of its discovery.
6) The 726-carat Jonker diamond discovered in South Africa in 1934, was the 4th-largest rough diamond at the time of its discovery.
7) The 650.80-carat Jubilee-Reitz diamond discovered in 1895 in South Africa was the 3rd-largest diamond at the time of its discovery.
8) The 457.50-carat Jacob-Victoria diamond discovered in 1884 was the 2nd-largest rough diamond at the time of its discovery.
9) The 428.50-carat De Beers diamond discovered in 1888 was the 3rd-largest rough diamond at the time of its discovery.
The information gathered above is confirmed by the table below arranged in chronological order
List of Largest Gem-Quality Rough Diamonds discovered in the World Arranged in Chronological Order
last updated by Lareef A. Samad on Saturday, August 31st, 2013
S/N | Name | Country of discovery | Year of discovery | Carat Weight | Color | Position at the time of discovery |
1 | Great Mogul | India | 1650 | 787 | Colorless/White | Largest until 1893 |
2 | Jacob Victoria | South Africa | 1884 | 457.50 | Colorless/White | 2nd-largest in 1884 |
3 | De Beers | South Africa | 1888 | 428.50 | Yellow | 3rd-largest in 1888 |
4 | Excelsior | South Africa | 1893 | 995 | Colorless /White | Largest in 1893 |
5 | Jubilee-Reitz | South Africa | 1895 | 650.80 | Colorless/White | 3rd-largest in 1895 |
6 | Cullinan | South Africa | 1905 | 3,106 | Colorless/White | Largest in 1905 |
7 | Jonker | South Africa | 1934 | 726 | Colorless/white | 4th-largest in 1934 |
8 | President Vargas | Brazil | 1938 | 726.60 | Colorless/White | 4th-largest in 1938 |
9 | Woyie River | Sierra Leone | 1945 | 770 | Colorless/White | 4th-largest in 1945 |
10 | Niarchos | South Africa | 1954 | 426.50 | Colorless/White | 10th-largest in 1954 |
11 | De Grisogono | Central africa | 1950s | 587 | Black | 8th-largest in 1950s |
12 | kimberley Octahedral | South Africa | 1964 | 616 | Yellow | 8th-largest in 1964 |
13 | Lesotho Brown | Lesotho | 1967 | 601 | Brown | 9th-largest in 1967 |
14 | Zale Light of Peace | Sierra Leone | 1969 | 435 | Colorless/White | 12th-largest in 1969 |
15 | Sefadu | Sierra Leone | 1970 | 620 | Colorless/White | 8th-largest in 1970 |
16 | Star of Sierra Leone | Sierra Leone | 1972 | 969.80 | Colorless/White | 3rd-largest in 1972 |
17 | Incomparable | Zaire | 1984 | 890 | Brownish-yellow | 4th-largest in 1984 |
18 | Unnamed | South Africa | 1984 | 620.14 | 12th largest in 1984 | |
19 | Golden Jubilee | South Africa | 1985 | 755 | Yellowish Brown | 8th-largest in 1985 |
20 | Centenary | South Africa | 1986 | 599 | Colorless/White | 17th-largest in 1986 |
21 | Millennium Star | Zaire | 1990 | 777 | Colorless/White | 6th-largest in 1990 |
22 | Lesotho Promise | Lesotho | 2006 | 603 | Colorless/White | 15th-largest in 2006 |
23 | Letseng legacy | Lesotho | 2007 | 493 | Colorless/White | 21st-largest in 2007 |
24 | Light of Letseng | Lesotho | 2008 | 478 | Colorless/White | 22nd-largest in 2008 |
25 | Unnamed Petra Diamond | South Africa | 2009 | 507 | Colorless/White | 20th-largest in 2009 |
26 | LetsengStar | Lesotho | 2011 | 553 | Colorless/White | 19th-largest in 2011 |
©Internet Stones.com
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