(Prices are per unit in gil)
Arrow: .25-.5
Bone: 2-5
Bread: 2-3
Brick (bar) 2-4
Cactus: 1-2
Cake: 5-20
Clay: .5-1
Cobblestone: .08-.16
Compass: 25-30
(Char)Coal: 1-2
Cooked Pork: 3-5
Cookie: .5-1
Dirt: .04-.07
Diamond: 50-100
Gold: 2-5
Glowstone: 1-5
Ice: 1-3
Iron (bar): 3-5
Lapis: 5.5-11
Logs: .25-.5
Moss stone: 2-5
Netherrack: 1-5
Pork (raw) .5-2
Redstone: .16-.32
Sand: .25-.5
Soul sand: 1-3
Stone: .5-1
Wheat: .5-1
Leave your comments below. I will update this list according to economic changes. :3
Remember, these are SUGGESTED prices. This is simply a guideline to follow in a general manner.
Note: I left out several arbitrary items as well as crafted items. Yes, this was intentional.