Not quite meeting Christies expectations but £15.8 million isn't an amount to disappoint, that was the figure not including tax & fees for a 101.73 ct flawless colourless diamond originally from  a 236ct rough nugget from the Jwaneng mine in Botswana. Harry Winston made the purchase and the stone has now been named "Harry Legacy". Although a record for an auction house sale The largest colourless flawless diamond known is the Cullinan Diamond, a gem weighing 530.2 carats.

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