• Chestpiece of High Treason
• Item Level 232Disenchants into:
  [Abyss Crystal]: 1-2
• Binds when picked up
  
• Plate
• Chest
• 2369 Armor
• +92 Stamina
  +92 Intellect
• Red Socket
• Socket Bonus: +5 Spell Power
• Durability 165 / 165
• Requires Level 80
• Equip: Improves critical strike rating by 72.
  Equip: Improves haste rating by 80.
  Equip: Increases spell power by 132.
• Sell Price: 15 12 28

Source

This item drops from Falric in Halls of Reflection on heroic mode.

Patch changes

• Patch 3.3.0 (08-Dec-2009): Added. 
  

External links

• Battle.net (EU)
• Wowhead
• Thottbot
• WoWDB