If you are a gem lover, it is alright to be envious as the world's largest blue diamond to come for auction has been sold. What may also interest you is that the 15.

'The De Beers Cullinan Blue': World's largest blue diamond goes under hammer, sells for $57.5 million

The world's largest blue diamond ever to come to auction has sold for $57.5 million. The diamond is called “The De Beers Cullinan Blue”.

World's largest blue diamond to go under hammer, sells for $57.5 million

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