Maybe you got a G and after the stone was set and you got it on your finger, you realized, "oh my, I don''t think I''m as color sensitive as I thought. I could have gone bigger (or spent the money on better clarity, etc.) by spending less on color. Should have gotten an H."
Or maybe you got an I and same scenario or even a J and thought "hmm, a K would have been just fine."
Or maybe you got an I and same scenario or even a J and thought "hmm, a K would have been just fine."