The Faith Diamond is a 52.8 carat diamond worth an estimated $300 million.
A young Lady Au Pair attempted to steal the Faith Diamond with her Murderous Moppets Tim-Tom and Kevin, but they were soundly foiled by Novia. By Guild estimates, it was Lady Au Pair's most stinging defeat.
It has not been revealed what Novia did with the diamond, if anything.
The Faith Diamond is probably patterned off of the Hope Diamond.