To me, genuine!
Women have a uniqueness about them. An unduplicated sense of empathy for some, strength, intuitive by nature. They're a balance, in my opinion.
A truly beautiful woman is one that is her own self. One with the ability not only to shine through, but spread that spark onto others.
What you see, is what you get, inside and out. Not a person pretending to be something they're not. Or, having an ulterior motive - be it money, power or anything else that isn't fully presented, well...upfront shall we say?