Pattern five involves only a single repeat to highlight the single row of diamonds across the sampler with flat knit stitching all around. Of the patterns so far, this one turned out the most like the image in the book. If you look closely you can see the more prominent diagonals running left to right downwards across the diamonds, which matches what I see in the source sampler.
The pattern was a bit involved to keep track of because the start and end of many rows were different, and with only three repeats across that resulted in a lot of my time knitting being spent on “special cases”. No, I haven’t jumped on board with knitting from the diagram as I said I would.
This almost cross the line to me of perhaps not being lace and being an inset panel. I wonder if it could be used in the case of color changes to give the impression of argyle in a sweater but with lacework.