Help, where is the rest of special loot in Outer or Core Citadel

[Gerom]

O.K. Once again stuck in Outer Citadel on expert level. I was able to find one special loot wich is Kersheck Horn. The rest of it, other two pieces are hidden somewhere. Please give any help. :o

[Stereophile]

There is a special tapestry and a huge diamond


1st clue the diamond is in the room called the theater. Up on the balcony where the 2 pagans were standing. it looks like a crystal.

2nd cluein the dark alcove off of the stairs in the other way up to the room with the crown there is some art.

[Stereophile]

Warning those spoilers give exact locations !!!!!