3 rings and 3 necklaces right now. Necklaces only drop in dungeons while rings drop outside of dungeons. More loot allows you to find higher ones easier as well as get more dusk.
Are you talking about opening the gift after Dungeon? Should be working but it is instant. I'll make a travel time and animation to that way you can see the stats go up, much like watching the Gold hit your account after killing a slime!
Should be fixed now!