A prismatic pendant is a pendant won from the Squeal of Fortune. It can be turned into any other Pendant of Skill. It cannot be worn until it has been converted into a Pendant of Skill, after which it works like a normal fully charged Pendant of Skill of that chosen variety.
When they were first introduced, players could not choose a skill for which they already had a pendant. As of 4 December 2012, it is possible to create a second pendant for a specific skill, provided they destroy the old pendant. Unlike other pendants, prismatic pendants can appear on the Squeal even if players already possess a prismatic pendant; it is possible to own more than one; and prismatic pendants stack in the bank.