Khloe's 12ct? Yeah, she's a big girl. I attached a picture of her new ring with a girl who is wearing a 4 ct ring (perhaps 2ct center with 4ct of pave diamonds). I'm guessing the girl is a size 6 ring finger.
wow. These two rings do not look 8 carats apart! Is the 4 carat a princess? I know a princess is cut shallow so they always appear much larger than the other shapes.