I would suspect it's a Murphy's patternless or blizzard. The yellow body/white tail look makes me think patternless, but it looks pretty young (or else it's bigger than it seems in the picture) and young patternless geckos have a faint beige pattern on the body and the head. Blizzards aren't usually that light. It's also possible it's an albino but I don't know for sure.
Where did you get it?
Aliza