Question

which is the biggest diamond in the world​

Answer 1

The Cullinan Diamond was the largest gem-quality rough diamond ever found, weighing 3,106.75 carats (621.35 g), discovered at the Premier No. 2 mine in Cullinan, South Africa, on 26 January 1905. It was named after Thomas Cullinan, the mine's chairman.
Cut:105 stones of assorted cuts
Cut by:Asscher Brothers
Mine of origin:Premier Mine

Answer 2

The Cullinan diamond is the biggest diamond in this world