Print or trace the block diagram onto foundation paper, number and cut out as in the photo.

Foundation piece all the numbered sections and trim their seam allowances to 1/4". Cut the unnumbered triangles out of fabric, remembering to add 1/4" seam allowance to them as well. I ironed them onto freezer paper to stabilize them and make it easier to cut the seam allowance.

Sew together the small pieced sections as in the photo.

Sew the shortest sections to opposite sides of the center square.

Sew the longer sections to the other two sides of the square.

Attach the four corner triangles.

Cut out and applique the corner diamonds using your favorite applique method. I have a really hard time appliqueing these so if anyone has some wonderful advice, please let me know.