Huge Emerald

Huge Emerald is an uncommon raw gem mined from Thorium Veins.

Source

 * Huge Emeralds are found in Large Obsidian Chunk, Ooze Covered Thorium Veins, Hakkari Thorium Veins, Small Obsidian Chunk, Rich Thorium Veins, Small Thorium Veins, and Ooze Covered Rich Thorium Veins.
 * They also drop from different mobs in level 40+ areas of Azeroth including Highlord Kruul, Frostsaber Stalker, Noxious Plaguebat, and Rock Stalker.
 * Contained in Bloated Salmon, Green Sack of Gems, Thaurissan Family Jewels, Solid Chests, Fel Iron Chests, Heavy Fel Iron Chests, and Adamantite Bound Chests.
 * Prospected from Thorium Ore and Mithril Ore.

As an ingredient
Huge Emerald is used in the following recipes:

Blacksmithing

 * Annihilator
 * Dawnbringer Shoulders
 * Enchanted Battlehammer
 * Enchanted Thorium Breastplate
 * Enchanted Thorium Leggings
 * Helm of the Great Chief
 * Invulnerable Mail
 * Masterwork Stormhammer
 * Nightfall (axe)
 * Runic Plate Helm
 * Serenity (mace)
 * Thick Obsidian Breastplate
 * Wildthorn Mail

Engineering

 * Master Engineer's Goggles

Jewelcrafting

 * Emerald Crown of Destruction
 * Figurine - Emerald Owl
 * Living Emerald Pendant
 * Emerald Lion Ring

Tailoring

 * Gloves of Spell Mastery

As a quest objective

 * Scrying Materials