This is the "Four Square With Flair" pattern from Butterfly Express Quilting (you can find the pattern in their online store). It is a quilt as you go pattern with the blocks joined by "hinge" strips that form the window pane style sashing. If you have never tried the hinge joining method I definitely recommend it. I love that I can quilt the blocks individually and then join them together at the end.
For the most part I stuck to the pattern, but I did decide to arrange the back squares in a more random distribution, rather than the "Four Square" design of the pattern. I love that the back of the quilt really shows off the individual fabric prints, while the front blends them together with the strips forming the abstract diamond pattern.