It really depends on the size of a quilt. Normally, I always cut my binding 2.25" but then a lot of my quilts were in competition and were hand stitched to the back.
But with miniature quilts, you might want to cut a 2" border. I am making mug rugs and I like the look of 1.75" double folded binding. It is a little snug when hand stitched to the back but they are usually 6.5" finished square. Hope this helps.