Primordial Ruby

Source
It is also found from mining Pandarian nodes.

Engineering

 * Lord Blastington's Scope of Doom

Gems

 * Bold Primordial Ruby
 * Brilliant Primordial Ruby
 * Delicate Primordial Ruby
 * Flashing Primordial Ruby
 * Precise Primordial Ruby
 * Primordial Ruby (recipe)

Mounts

 * Ruby Panther

Accessories

 * Lord's Signet