Tenacious Earthstorm Diamond

A synopsis of where the meta gem recipes come from:

Bracing Earthstorm Diamond (http://www.wowhead.com/?spell=32867) +26 Healing & 2% Reduced Threat
Consortium – Revered (vendor in Kharazhan)

Brutal Earthstorm Diamond (http://www.wowhead.com/?spell=32869) +3 Melee Damage & Chance to Stun Target
World Drop

Destructive Skyfire Diamond (http://www.wowhead.com/?spell=32871) +14 Spell Crit Rating & 1% Spell Reflect
World Drop

Enigmatic Skyfire Diamond (http://www.wowhead.com/?spell=32874) +12 Critical Strike Rating & 5% Snare and Root Resist
Keepers of Time Honored

Insightful Earthstorm Diamond (http://www.wowhead.com/?spell=32870) +12 Intellect & Chance to restore mana on spellcast
The Sha'tar – Friendly

Mystical Skyfire Diamond (http://www.wowhead.com/?spell=32872) 5% on spell cast – next spell cast in half time
World Drop

Powerful Earthstorm Diamond (http://www.wowhead.com/?spell=32866) +18 Stamina & 5% Stun Resist
The Consortium – Honored (vendor in Kharazhan)

Swift Skyfire Diamond (http://www.wowhead.com/?spell=32873) +24 Attack Power and Minor Run Speed Increase
The Consortium – Honored

Tenacious Earthstorm Diamond (http://www.wowhead.com/?spell=32868) +12 Defense Rating & Chance to Restore Health on hit
World Drop

what does this mean requires at least 5 red, blue, yellow gems?

i just got it working there now...u need 5 of each colour gems in total....some gems count as one of each colour, which makes it easier. So, for example, 5 blue and 5 red/yellow combined gems will do nicely for 11 slots total needed (including meta slot of/c). Will update o the proc rate later on when i've tried it more in party.