• Icy Prism
• Item Level 80Disenchants into:
  Not disenchantable
• "Several dazzling gems hide inside...."
• <Right Click to Open>

Source

Taught by the Jewelcrafting trainer in Dalaran; requires 425 skill to create. Icy Prisms contain 2-3 rare Northrend gems and also may contain a [Dragon's Eye] (about 10% chance) or an epic Gem (about 8% chance). Creating this item has a 20 hour cooldown, similarly to  [Brilliant Glass].

Materials required:

	1x [Frozen Orb]		1x [Chalcedony]
	1x [Shadow Crystal]		1x [Dark Jade]

Patch changes

• Patch 3.3.3 (2010-03-23): Undocumented change
  

            The number of each gem necessary has been reduced from 3 to 1.

• Patch 3.2.0 (04-Aug-2009): Now has a chance of yielding an epic gem. 
  

External links

• Battle.net (EU)
• Wowhead
• Thottbot
• WoWDB