• Frozen Tear of Elune
• Item Level 226Disenchants into:
  [Abyss Crystal]: 1-2
• Binds when picked up
• Neck
• +63 Stamina
  +43 Intellect
• Requires Level 80
• Equip: Improves critical strike rating by 41.
  Equip: Restores 17 mana per 5 sec.
  Equip: Increases spell power by 74.

Source

This item is sold by the following vendors for 19 :

•  Arcanist Firael <Emblem of Conquest Quartermaster> in Dalaran
•  Harold Winston <Jewelry Vendor> in Dalaran
•  Magister Sarien <Emblem of Conquest Quartermaster> in Dalaran

Patch changes

• Patch 3.1.0 (14-Apr-2009): Added. 
  

External links

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