So if you go to the battle.net website and sort items via jeweler.
ala this page http://us.battle.net/d3/en/item/#filter=jeweler
it will narrow down the list of items the jeweler can interact with.
There is a thread below this one talking about jeweler socketing and what he can/cant socket, and since the game guide has been updated to include new things i can only assume this is accurate.
My query really is then why does amulets light up? can you socket amulets and bracers?
for reference the item list is helms, chest armor, braces, shields, amulets and belts. No weapons.
Surely this is incorrect information?