This page contains dishcloths made on the diagonal. Unless otherwise noted they are knitted.
More Diagonally made cloths can be found here.
8 inch Garter Stitch Bias Square-about 1/4 of the way down. Not designed for a dishcloth, but makes a very good easy one when made with cotton yarn.
Bernat Easy Dishcloth– (PDF )
Diamond Dishcloth-( C )