It's not that hard of a pattern to do, just tons of HSTs! Piles and piles of them.
I have avoided doing diamonds since my first attempt many, many years ago. Maybe someday I will try again using starch. I don't even know if there was rotary cutting when I was doing that diamond quilt. In fact, it just flashed into my mind the memory of using a ruler and drawing the lines for the diamonds. No wonder I hated doing diamonds and trying to get points to come together!