Second-largest diamond ever found

The 2,492-carat gem-quality diamond unearthed by Canada’s Lucara Diamond Corp. in Botswana has an estimated value of over $40 million

Value of diamonds based on: Carat weight Colour Clarity Cut

2,492 carats = 498.4 grams

Found in  kimberlite ore at Karowe Mine using Mega Diamond Recovery X-ray Transmission – analyses stones for shape, density and inclusions

AFRICA
Botswana

LARGEST ROUGH DIAMONDS (Size in carats, uncut*)  Found at Karowe

1. Cullinan, 1905   3,106
South Africa, Premier Mine  

2. Unnamed, 2024   2,492
Botswana, Karowe Mine  

3. Sewelô, 2019    1,758
Botswana, Karowe Mine  

4. Lucara, 2021    1,175
Botswana, Karowe Mine

5. Lesedi La Rona, 2015  1,109
Botswana, Karowe Mine 

6. Unnamed, 2021    1,098
Botswana, Jwaneng Mine

7. Unnamed, 2023    1,080
Botswana, Karowe Mine 

8. Unnamed, 2020   998
Botswana, Karowe Mine 

9. Excelsior, 1893   995
S. Africa, Jagersfontein Mine

10. Star of Sierra Leone, 1972  969
Sierra Leone, Diminco Mine

Cullinan cut into several polished gems – two largest can be found in British Crown Jewels

Great Star of Africa 530 carats

Second Star of Africa 317 carats


* White and yellow diamonds only; excludes 3,167-carat Sergio black diamond

Sources: Lucara Diamond
Pictures: Lucara Diamond, The Cullinan
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