The Jade Eye

The Jade Eye is a mid-level uncommon ring designed for tanking.

Source
This item is crafted by jewelcrafters with a skill level of 170. The components are:

Design: The Jade Eye is sold in limited quantity by Arred in Exodar or Burbik Gearspanner in Ironforge for Alliance players and by Gelanthis in Silvermoon City or Felicia Doan in Undercity for Horde players.