Patrizia,
The graphite is indeed rich-looking and classy, one could even say elegant. It is a nice choice by Amazon being less ordinary, or stark, as black might be, IMHO. Big thumbs up.
Having the DXG now for a while, I have decided not to skin it (or my upcoming K3) as I have my previous white Kindles. I prefer the look of the graphite, as it really enhances the beautiful Pearl e-ink display and hence my reading experience. With the interior of Amazon's cover, it completely "disappears" while reading (as I expect it will with any gray or black interior, i.e. Oberon).
It is a color that is equally appealing to male or female.
Personally, I am really tired of looking at white anything, thanks to Steve Jobs.