In 1907 the Transvaal Colony government bought the Cullinan and presented it to King Edward VII on his 66th birthday .
In April 1905 , the Cullinan was put on sale in London , but despite considerable interest , it was still unsold after two years .
In 1907 the Transvaal Colony government bought the Cullinan and presented it to King Edward VII on Cullinan 's 66th birthday .
In April 1905 , the Cullinan was put on sale in London , but despite considerable interest , it was still unsold after two years .