The current jewelry-making pretty much sucks in my opinion. It's only worth to level up for the level 40 and level 45 stuff.
I suggest that there are sets or heroic amulets, charms and rings that can be crafted at each 10 level. For sets, they will start at level 25. Heroics at 10 or 15. This way, people would be more interested in leveling up their jewelry.
Edited by Surya, 29 June 2014 - 05:38.