Emperor's set recipe

Helmet : 4 Int Crystal (Warrior, Archer, Pirate) or 4 Luk Crystal (Magician & Thief), 30 Emperor Coin, 4 Premium Item Crystal.
Overall: 5 Lidium, 4 Int Crystal (Warrior, Archer, Pirate) or 4 Luk Crystal (Magician & Thief), 30 Emperor Coin, 4 Premium Item Crystal.
Boots : 1 Lidium, 1 Int Crystal (Warrior, Magician, Pirate) or 1 Luk Crystal (Archer & Thief), 30 Emperor Coin, 2 Premium Item Crystal.
Gauntlet : 1 Lidium, 3 Int Crystal (Warrior, Magician, Pirate) or 3 Luk Crystal (Archer & Thief), 30 Emperor Coin, 4 Premium Item Crystal.
Cape : 30 Mr.Alli's leather, 1 Purple Magic Powder, 30 Emperor Coin, 2 Premium Item Crystal.
Weapon : 2 Lidium, 8 Int Crystal (Depends on weapon) or 8 Luk Crystal (Depends on weapon), 30 Emperor Coin, 8 Premium Item Crystal.

Shamelessly copied from Jay on EF.