Violet Seal of the Archmage (855)

• Violet Seal of the Archmage
• Item Level 855
• Binds when picked up
• Finger
• +1,204 Stamina
• +1,404 Critical Strike
• +829 Mastery
• Requires Level 110
• Sell Price: 20

Source

This item is a quest reward from  [45D] Return to Karazhan: Rebooting the Cleaner.

It is also sold by   Mage Darius in Deadwind Pass for 10 if you've lost the ring.

Patch changes

• Patch 7.1.0 (2016-10-25): Added.
  

External links

• Wowhead
• WoWDB