I think if GIA was grading this stone, they'd add something about "brownish"
It is faint - I cannot see it in the pictures - but in person, the pink has a tinge of brown.
It is still hugely pretty, IMO.
Of course, as a lifelong member of Emerald Cut Lovers of America, I'm prejudiced.
The stone looks just like a natural diamond would if you could ever find one this color. Perfectly transparent. Great crystal qualities. It has the crazy orange fluorescence common in pink lab diamonds, but there's no negative aspects to it.
It'll be amazing next time you hit the Disco, I'll tell you that!