As others have helpfully replied, the best way to find out is to equip the item in question and check yourself. To do this I normally compare the item my rank vs. the higher ranked item, but I have also had the "can't find the one my rank!" problem. I started wearing the r26 boots on my crafter at r16-ish, 'cause I couldn't find the ones my level. But on the plus side, I'm r28 and still haven't had to buy new crafting boots! lol.
In my opinion it is really not so bad if the rank difference isn't too big. For example, when I equip r39 toadskin leggings on my r31 mage, the stats I get are not notably better than when I equip the r29 leather leggings -- but nor are they worse. So while I am not getting the full stats, the reduced stats are still comparable to something rank appropriate. This is just my experience though.
Edited, Jan 20th 2011 2:39am by Dollfie
Edited, Jan 20th 2011 2:40am by Dollfie