Looks like a snow or super snow Blizzard to me. I haven't worked with Blizzards myself but I hear the super snows have more of a "chalky" appearance which yours seems to. Test breeding to a normal would tell you for sure. Then if you get 100% snow babies she's more than likely a super snow!
To me it doesn't look white enough in some of the pictures (and in the description) to be a Diablo Blanco, if that's what you mean and the owner doesn't say anything about red eyes.
Looks like a kind of blizzard to me, the eyes don't look red and usually if it's a diablo or something you'd know because you'd be paying for those genetics Blizzards can be pretty white when their young and range from white/grey/purple scale a lot, even from week to week. My blizzard het tremper was a pure white baby but as an adult she's a dark purple/grey.