Not cheap, the AH prices on these are ridiculous, but I can give a guild discount.
Good for level 50 characters if you have a rogue alt, say.
HP 70, evasion 372, defense 54, and there's a set bonus, according to the Wiki:
* Bonus with 2 of 5 parts equipped: Minimum damage +10
* Bonus with 4 of 5 parts equipped: Minimum damage +10, Maximum damage +10
* Bonus with 5 of 5 parts equipped: Minimum damage +20, Maximum damage +20, Critical Rate +1.50%