Crafts, Tools and Components
The 'Return' number indicates the Ratio of materials (required to produce the item) to selling-price of the particular item. In other words, the investment return, or profit-potential, of the manufactured item. All prices listed are approximates--they are subject to change due to economic conditions, etc. When possible, the prices listed assume that there are 10 of the particular item in stock (with the exception of reagents). Listed alphabetically, by the name of the item as it appears in-game. 
Craft / Component Name "Buy" Price "Sell" Price Materials Return Weight
Arcane Gem -- -- -- -- ?
Axle 2 GP 1 GP 1 wood 1.0 1 stone
Axle with Gears 3 GP 1 GP 2 ingots, 1wood 0.3 1 stone
Bale of Cotton 122 GP 61 GP --  -- 4 stones
Ball of Yarn 21 GP 10 GP 1/3 sheared wool
or 1 carved wool
-- 1 stone
Bandages 6 GP 3 GP 1 cloth 3.0 1 stone
Barrel Hoops -- -- 5 ingots -- 5 stones
Barrel Lid -- -- 4 wood -- 2 stones
Barrel Staves -- -- 5 wood -- 1 stone
Barrel Tap -- -- 2 ingots -- 1 stone
Batwing 3 GP 1 GP --  -- 1/10 stones
Black Pearl 5/6 GP 2 GP --  -- 1/10 stones
Blood Moss 6 GP 3 GP --  -- 1/10 stones
Blow Pipe 21 GP 10 GP --  -- 1 stone
Board 3 GP 1 GP 1 log 1 1 stone
Bola Ball -- -- -- -- 1 stone
Bolt of Cloth 120 GP 60 GP 5 thread, yarn -- 5 stones
Butcher Knife 25 GP 12 GP 2 ingots 6.0 1 stone
Candelabra -- -- 4 ingots -- 3 stones
Cleaver 25 GP 12 GP 3 ingots 4.0 1 stone
Clock 24 GP 12 GP 4 ingots, 7 wood
or 1 ingot, 6 wood
1.1
or
1.7
2 stones
Clock Frame -- -- 6 wood -- 2 stones
Clock Parts 3 GP 1 GP 4 ingots, 1 wood
or 1 ingot
0.2
or
1.0
1 stone
Cut-up Leather 7 GP 3 GP 1 hide 3 1 stone
Daemons Blood 6 GP 3 GP --  -- 1/10 stones
Dead Wood 2 GP 1 GP --  -- 1 stone
Dovetail Saw 14 GP 7 GP 2 ingots 3.5 1 stone
Dragon Scales -- -- -- -- ?
Draw Knife 12 GP 6 GP 2 ingots 3.0 1 stone
Dyes 8 GP 4 GP --  -- 3 stones
Dying Tub 9 GP 4 GP --  -- 10 stones
Feather 2 GP 1 GP 1 feathered animal -- 1/10 stones
Flax Bundle 122 GP 61 GP --  -- 1 stone
Folded Cloth 3 GP 1 GP --  -- 1 stone
Froe 12 GP 6 GP 2 ingots 3.0 1 stone
Garlic 3 GP 1 GP --  -- 1/10 stones
Gears 2 GP 1 GP 2 ingots 0.5 1 stone
Ginseng 3 GP 1 GP --  -- 1/10 stones
Globe -- -- 4 ingots -- 4 stones
Grave Dust 3 GP 1 GP --  -- 1/10 stones
Hatchet -- -- 4 ingots -- 4 stones
Hammer 28 GP 14 GP 4 ingots 3.5 2 stones
Heating Stand 2 GP 1 GP 4 ingots -- 1 stone
Hide 3 GP 1 GP 1 hided animal 1 5 stones
Hinge 2 GP 1 GP 2 ingots 0.5 1 stone
Inshave 12 GP 6 GP 2 ingots 3.0 1 stone
Iron Ingot 9 GP 4 GP Ore variable 1/10 stones
Iron Key 9 GP 4 GP 3 ingots 1.3 1 stone
Jointing Plane 13 GP 6 GP 4 wood 1.5 1 stone
Keg, Open -- -- 3 Barrel Staves + Set of Hoops + Barrel Lid -- 15 stones
Key Ring 9 GP 4 GP 2 ingots 2.0 1 stone
Lantern 7 GP 3 GP 2 ingots 1.5 2 stones
Leather Strips -- -- -- -- 1 stones
Log -- 1 GP -- 1.0 2 stones
Lockpick 12 GP 7 GP 1 ingot 7 1 stone
Lockpicks (set) 18 GP 9 GP --  -- 1/7 stones
Mallet and Chisel 3 GP 1 GP --  -- 1 stones
Mandrake Root 3 GP 1 GP --  -- 1/10 stones
Mortar & Pestle 9 GP 4 GP 3 ingots 1.3 1 stones
Moulding Planes 13 GP 6 GP 4 wood 1.5 2 stones
Nails 3 GP 1 GP --  -- 2 stones
Necromancer Spellbook, Empty 115 GP 57 GP -- -- 0 stones
Nightshade 3 GP 1 GP --  -- 1/10 stones
Nox Crystal 6 GP 3 GP --  -- 1/10 stones
Ore (Small Pile) -- -- --  -- 2 stones
Ore (Medium Pile) -- -- --  -- 7 stones
Ore (Large Pile) -- -- --  -- 12 stones
Pickaxe 34 GP 17 GP 4 ingots 4.3 11 stones
Pig Iron 5 GP 2 GP --  -- 1/10 stones
Pile of Wool (white, sheared off living sheep) 74 GP 37 GP --  -- 4 stones
Pile of Wool (grey, carved off dead sheep) -- -- --  -- 2 stones
Potion Keg -- -- Empty Barrel + Barrel Tap + Barrel Lid + 10 empty Bottles -- 20 stones when empty
Potion (Purple) 24 GP 12 GP variable variable 1 stone
Potion (Red) 15 GP 7 GP variable variable 1 stone
Potion (Other) 18 GP 9 GP variable variable 1 stone
Recall Rune 18 GP 9 GP --  -- 1 stone
Rune Book -- -- recall scroll, 1 gate scroll, 1 blank rune, 8 blank scrolls -- 0 stones
Sand -- -- -- -- 1 stone
Savage Kin Paint -- -- 1 tribal berry, 1 sack of flour -- 1 stone
Saw 18 GP 9 GP 4 ingots 2.25 2 stones
Scales -- -- 5 ingots -- 4 stones
Scissors 13 GP 6 GP 4 ingots 1.5 1 stone
Scorp 12 GP 6 GP 2 ingots 3.0 1 stone
Scroll (blank) 12 GP 6 GP --  -- 1 stone
Scroll (First Circle) 12 GP 6 GP variable variable 1 stone
Scroll (Second Circle) 22 GP 11 GP variable variable 1 stone
Scroll (Third Circle) 32 GP 16 GP variable variable 1 stone
Scroll (Fourth Circle) 42 GP 21 GP variable variable 1 stone
Scroll (Fifth Circle) 52 GP 26 GP variable variable 1 stone
Scroll (Sixth Circle) 62 GP 31 GP variable variable 1 stone
Scroll (Seventh Circle) 72 GP 36 GP variable variable 1 stone
Scroll (Eighth Circle) 82 GP 41 GP variable variable 1 stone
Sea Serpent Scales -- -- -- -- ?
Sewing Kit 3 GP 1 GP 2 ingots 0.5 2 stones
Sextant 15 GP 7 GP 4 ingots, 1 wood
or 4 ingots
1.4
or 1.75
2 stones
Sextant Parts 6 GP 3 GP 4 ingots, 1 wood
or 4 ingots
0.6
or 0.75
2 stones
Shaft 3 GP 1 GP 1 wood 1.0 1/10 stones
Shovel 14 GP 7 GP 4 ingots 1.8 5 stones
Skinning Knife 26 GP 13 GP 2 ingots 6.5 1 stone
Sledge Hammer 32 GP 16 GP 4 ingots 4.0 9 stones
Smith's Hammer 30 GP 15 GP 4 ingots 3.75 8 stones
Smoothing Plane 12 GP 6 GP 4 wood 1.5 1 stone
Spellbook, Empty 22 GP 11 GP -- -- 0 stones
Spider's Silk 3 GP 1 GP --  -- 1/10 stones
Spool of Thread 21 GP 10 GP 1/6 flax
or 1/6 cotton
6.0 1 stone
Springs 3 GP 1 GP 2 ingots 0.5 1 stone
Spyglass 2 GP 1 GP 4 ingots -- 3 stones
Stone -- -- -- -- 10 stones
Sulphorous Ash 3 GP 1 GP --  -- 1/10 stones
Tinker's Tools 8 GP 4 GP --  -- 1 stone
Tongs 16 GP 8 GP 4 ingots 2.0 2 stones
Tool Kit (Tinker's Tools) -- 1 GP 2 ingots 0.5 1 stone
Tribal Berry -- ? -- -- 1 stones
Wooden Box 14 GP 7 GP 9 wood 0.8 4 stones
Wooden Chest 30 GP 15 GP 15 wood 1.0 4 stones
Zoogi Fungus -- -- -- -- 1 stones
Provisions
Provision Name "Buy" Price "Sell" Price Materials Return Weight
Amethyst (gem) 120 GP 60 GP --  -- 1 stone
Backgammon Game 2 GP 1 GP --  -- 5 stones
Backpack 18 GP 9 GP --  -- 3 stones
Bag 7 GP 3 GP --  -- 2 stones
Bedroll 6 GP -- --  -- 5 stones
Book (brown) 18 GP 9 GP --  -- 2 stones
Book (green/beige) 18 GP 9 GP --  -- 2 stones
Book (purple) 18 GP 9 GP --  -- 2 stones
Candle 6 GP 3 GP --  -- 2 stones
Checker Board 2 GP 1 GP --  -- 5 stones
Chessboard 1 GP 0 GP --  -- 5 stones
Citrine (gem) 60 GP 30 GP --  -- 1 stone
Comm. Crystal (500) 81 GP 40 GP --  -- 1 stone
Comm. Crystal (1000) 158 GP 79 GP --  -- 1 stone
Comm. Crystal (2000) 310 GP 155 GP --  -- 1 stone
Copper Key 2 GP 1 GP --  -- 1 stone
Diamond (gem) 240 GP 120 GP --  -- 1 stone
Dice and Cup 2 GP 1 GP --  -- 1 stone
Drum 25 GP 12 GP --  -- 3 stones
Dry docked boat -- -- --  -- 1 stone
Fishing Pole 15 GP 7 GP 5 wood, 5 cloth 0.7 8 stones
Fur 2 GP 1 GP --  -- 10 stones
Emerald (gem) 120 GP 60 GP --  -- 1 stone
Empty Bottle 6 GP 3 GP --  -- 1 stone
Gold Key 9 GP 4 GP --  -- 1 stone
Hair Dye 60 GP 30 GP --  -- 1 stone
Kindling 2 GP 1 GP 1 wood
or 1 tree
-- 1 stone
Lap Harp 25 GP 12 GP --  -- 10 stones
Lute 24 GP 12 GP --  -- 5 stones
Map (blank) 3 GP 1 GP --  -- 1 stone
Map of (Town) 9 GP 4 GP --  -- 1 stone
Map of (Region) 15 GP 7 GP --  -- 1 stone
Map of the World 75 GP 37 GP --  -- 1 stone
Oil Flask 9 GP 4 GP --  -- 1 stone
Pen and Ink 6 GP 3 GP --  -- ? stones
Pewter Bowl 2 GP 1 GP --  -- 1 stone
Picnic Basket -- -- -- -- ? stones
Piece of Amber (gem) 60 GP 30 GP --  -- 1 stone
Pitcher (empty) 8 GP 4 GP --  -- 2 stones
Pouch 7 GP 3 GP --  -- 1 stone
Ruby (gem) 90 GP 45 GP --  -- 1 stone
Rusty Iron Key 9 GP 4 GP --  -- 1 stone
Sapphire (gem) 120 GP 60 GP --  -- 1 stone
Star Sapphire 150 GP 75 GP --  -- 1 stone
Tambourine 24 GP 12 GP --  -- 1 stone
Torch 7 GP 3 GP --  -- 1 stone
Tourmaline (gem) 90 GP 45 GP --  -- 1 stone