Sorry but Tiffany jewelry just doesn't seem to be sold wholesale. I tried searching but I really couldn't get hold of any suitable suppliers, most just offered replicas.
You could however open a business account with them and get 15% off on the price. If your interested here's the link:Link hidden: Login to view
Also here are other related posts on the forum, you may pick up a thing or two:Link hidden: Login to viewLink hidden: Login to view
Hope this helps. Cheers :)