If you can afford either you shouldn't be trying to get your hands on this ring. Tell him your knocked up and make him buy you the ring then you say just kidding and keep if anyways.
Everything's on sale on their website as well as other "Twilight Jewelry" translation: stuff they put Bella/Twilight on to make us buy it :)
um just a thought, isn't Jacob's wolf supposed to be made of wood? O.o