Price Check (or PC), is what players do when they intend to sell some item. This can be done by saying «PC [item name and stats]». Other players that see the message will suggest a price for that item.
Glob of Ectoplasm - 4.1 - 4.3
Bone Dragon Staff (req. 9 heal) - 100 + 180
Miniature Kuunavang - 70
Elementalist Tome - 700
Lockpick - 1200 - 1300
Feather Stack - 10
Elite Elementalist Tome - 7
Dust Stack - 4
Destroyer Core 300
Ruby - 3200
Sapphire - 3200
Sapphire - 8
Consumable Set - 8
Gift of the Traveler - 4
Onyx Gemstone - 500