Hello guys

I am new to this game and i just hit lvl 50 and i finished quests until patch 2.4 which gives lvl 110 gears.

i am just wondering if i lvling another class, how do i get gears if i finished all the quests which gives us 90 and 110 ilvl gears?

do i just buy with Allagan Tomestones?

please reply me