Cullinan Diamond
The Cullinan Diamond is the largest gem-quality rough diamond ever found, weighing , 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.
Jubilee Diamond
Dorabji Tata acquired it around 1900 and gave it to his wife Meherbai. She used to wear it during her visits to the royal courts and public functions. The Jubilee Diamond was the largest in the world until 1905 when a bigger diamond was exhibited. It was sold only after his death in 1932 and the money went to the formation of the Sir Dorabji Tata Trust.