I'm not 100% sure what the going rate is for a lot of these, so my prices are just a rough guess. I'm only interested in crafting materials, as I have no use for platinum right now. If you feel the need to share what you think something is worth, please do it via PM, this isn't a price check thread. Otherwise feel free to make an offer if you see something you like. Please contact me here first to organise any trades.
FRDS = Flawless Red Dragon Scale
LDS = Large Devil Scales
LTS = Large Twisted Shrapnel
LSS = Large Sulfurous Stone
Fens
Twisted Talisman: 2 FRDS
Raven's Sight: 1 FRDS
Raven's Talons: 1 LTS/LSS
Ring of the Mire: 1 FRDS
Boots of the Mire: 1 LTS/LSS
Shaman's Brooch: 1 LDS
Shaman's Band: 1 LDS
Sacred Helm: 1 LTS/LSS
Sacred Band: 1 LTS/LSS
Shatterbow: 1 LDS
Robe of Dissonance: 1 LDS
Necklace of Venom: 1 LDS
Siren's Bracers: 1 LDS
Elder's Focus: 1 LDS
Cacophonic Verge: 1 LTS/LSS
Carnival
Garos' Malice: 1 LTS/LSS
Mask of Comedy: 1 LTS/LSS
Mask of Tragedy: 1 LTS/LSS
Phiarlan Spy Dagger: 1 LTS/LSS
Shimmering Pendant: 1 LTS/LSS
Full Plate of the Ringleader: 1 LTS/LSS
Kronzek's Cruelty: 1 LTS/LSS
Illusionist's Robe: 1 LDS
Vault
Kundarak Warding Bracers: 1 LDS
Kundarak Delving Suit: 1 LTS/LSS
Necklace of the Azure Prophecy: 1 LTS/LSS
Sentinels
Jidz-Tet'ka: 1 FRDS
Elyd Edge: 1 FRDS
Midnight Greetings: 1 LDS
Blademark's Docent: 1 LDS
Chimera's Crown: 1 LTS/LSS
Sands
Firestorm Greaves: 1 LDS
Ward of Undeath: 1 LTS/LSS
Shield of the Scorpion: 1 LTS/LSS