Thanks so kindly. I will go with the silver blocks between the square diamonds. I think I will use some kind of light blue for the outer half squares, along with a strip around all of it. Then I will use what I have left of the fabric I used for the square diamonds around all of that. I wonder if there is such a thing as a neutral light blue?
I'll have to audition the blues until I find one that just seems right with the diamonds and the silver. I've done that, and sometimes it takes days for something to just click, that says that's the combination of colurs.