Gem of Seeing
With this translucent stone held to your eye, all things become tantalizingly clear to you.
Wondrous Item 13,000 gp
While you peer through the gem, you gain a +3 item bonus to Perception checks to see things.
Utility Power Daily (Minor Action)
Effect: Until the end of your next turn, you can see invisible creatures and objects, and you know that any illusion you can see is an illusion.
Published in Mordenkainen's Magnificent Emporium, page(s) 84.