Well, let's see...it's about 36 inches by 36 inches, made on a 7x7 grid.
I cut out seven squares each from each of the seven colors in the rainbow (red, orange, yellow, green, blue, indigo and violet). I then cut each square in half, into two triangles, and then I sewed the triangles back together, with a strip of fabric in a complementary color (red/green, blue/orange, yellow/violet and all vice versa) in the middle.
In the first row, I put together seven squares in the order they'd appear on the spectrum (red to violet). In the second row, same drill but then I started the row with orange, so that each color gets moved over one space, and so on. So you've got staggered rows of color going diagonally across the quilt - and I arranged the squares so that their inner strips made a criss-cross pattern all over - does that help?