Stage 225-300 needs 50 silver ingots, 5 rubies, 10 real silver ingots, 10 ambition, 20 giant opal/azeroth diamonds, 10 sapphires, 10 necromancer essence and 20 giant emeralds.
At the stage of 300-350, you need 15 green gemstones in any outland +20 garnet+10 garnet +5 turquoise+10 tourmaline. 10 magic iron ingot, 15 refined gold ingot, 1 original soil, 3-4 refined gold powder.
50-60 Northrend green quality gems, 30-40 blue quality gems and 30-40 Earth Invasion/Celestial Gems are needed in the 350-450 stage.