Looks like a new paint job on Gaultier’s racket. Here he is at the World Series Finals in March 2014:
Photo by Mick Anders ∞
It looks like the Dunlop Biomimetic Ultimate (though not exactly like it).
Gaultier used to promote the Dunlop Biomimetic Elite, so this is somewhat of a departure.
(Regardless, Gaultier has been using a painted version of the the Dunlop Custom ICE Elite for years.)
Thanks to Jeroen for the tip!