The Prized pendant of Thievery is obtained by playing the Squeal of Fortune. When worn, it provides triple experience for Thieving. It will degrade until no more experience can be tripled -- the remaining experience can be checked by right-clicking on it. Once fully degraded, it will not be destroyed, but it will have no further use. The total amount of extra experience it grants is similar to that of a Huge XP lamp. Unlike most Squeal of Fortune rewards, the pendant appears directly in your inventory instead of in your bank.