Watch: Moment Botswana's president feels weight of giant diamond
Botswana's President, Mokgweetsi Masisi, had to use both hands to hold the world's second largest diamond.
"God is good," he exclaimed as the 2,492-carat stone was unveiled.
A Canadian mining company, Lucara, discovered the diamond in the Karowe diamond mine.
The world's largest stone was 3,106-carat and was found in South Africa in 1905.
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