Depends on what you've got access too. If you're going into this a complete noobie, it takes just a few gold to get a full set of zerker rares (yellows), then work on karma and world bosses for exotics. Run Silverwastes til your eyes bleed, turn the bandit crests into keys and get on a chest farm map. Repeat until you're covered in exotics. Level your crafting armour type and weapon type to 500, start cranking out Ascended materials daily. Join a guild, run guild missions weekly for a month to get both Ascended earrings for your spec. Use Laurels (and or Laurels + Badges of Honor) for the necklace. Run Fractals to buy Rings.
If you're running condition damage builds, you can ignore the guild missions, and buy Living Story part 2, and crank out the cheevos for a set of earrings and rings (Sinister).