Scott Reyburn on Bloomberg identifies the buyer of the late Picasso at Christie’s:

The painting was bought by the London-based collector Laurence Graff, chairman of Graff Diamonds Limited, against competition from Russian bidders. The purchase was confirmed yesterday in an e-mail to Bloomberg News from Penny Weatherall, Graff’s personal assistant.

Johns, Picasso to Top $30 Million Sale of Writer Crichton’s Art (Bloomberg)