The Great star of Africa is another name for Cullinan diamond.

It is a 3,106 carat and weight around 621 grams. It was found on 1905 in South Africa.

And it is then polished (pear shaped) and named the Cullinan I - around 510 carat, now it is belong to the England, actually it is still attached to the Sceptre of St. Edward.