Diamond Exchange is the 13th episode and Season Finale of Season 5 of the series and the 74th produced episode.
Neal and Peter race to find a treasure hidden beneath New York City before it falls into the wrong hands
- Matt Bomer as Neal Caffrey
- Tim DeKay as Peter Burke
- Willie Garson as Mozzie
- Marsha Thomason as Diana Berrigan
- Sharif Atkins as Clinton Jones
- Tiffani Thiessen as Elizabeth Burke