She doesn't really fit any 1 specific figure that I can find, at least on the Daz store, so unless she's somewhere else, like renderosity, she's probably either a personally modified character, or a mishmash of several different figures.
I'd say you're better off tyring to sculpt her yourself. Made this from the base Genesis 8 in a few minutes, not a perfect mirror, but a proof of concept. The Nose, Cheeks, and Jawline seem to be the most defining features of that girl, and while this isn't hitting it perfectly, it should be enough of a show to say, it's not hard. (especially since this is my third day playing with daz)