With the current scaling system, rare world drops for weapons, shields, and off-hands scale as level 12, 17, 22, 27 ect and armor scales as 10, 15, 20 ,25 with +8 ilvls. So for 19s, there are new weapons that are ilvl 25 and armor that is ilvl 23. Some of the rares are originally level 15-25...