This is what 1st grade hickory flooring will look like unstained. The color contrast between creamy brown and bright white will exist in all grades as it is not considered a grade defect. However you will see more consistency overall in the color and fewer knots and mineral streaks.
This is natural hickory in a 2nd grade. Hickory is graded differently than oak with 1st grade being the highest, then 2nd then 3rd grade. This product has a lot of rustic variation in 2nd and 3rd grade as you can see. However when stained the product retains that natural wood look but becomes more consistent in its color tone. To see this product stained look at the pin on this board entitled "Random width handscraped hickory" and you'll see the transformation.