All of them:
Jewelry Construction Kit: Rings & Studs
Jewelry Construction Kit: 150 Pendant
Jewelry Construction Kit: Pendants & Buttons

They were on sale and I had one of those handy Renderosity coupons, so I splurged.  ;)

The 4th one V3 and SP jewelry already put together, this cheaper than the 3 sets, but it's only for SP and V3, doesn't have as many things as the 3 sets (it's mostly the basics), and it doesn't come with the python or the windows app to customize your own jewelry. But this could be a good way to go if you're on a budget and not as picky about jewelry like I am.  ;)

bB