Kitsie -
I know a lot of the ones I see now are HST, but I have one my grandmother quilted for me that truly is diamonds. I think it was pieced by my grandfather's mother. She opened a trunk full of tops and had all the grandkids pick one, then she hand-quilted them. I wish I knew for sure who pieced the quilt and how old it is. If I ever uncover the cedar chest I'll take a picture and post it.
Darren