The Grand Exchange

The Grand Exchange is the key tool that you will be using in merchanting. It replictes the real life Stock Market as the prices fluctuate according to demand and supply. So in more simple terms, the more people that buy an item without people selling, the higher the price will raise, and vice versa.

The four hour Grand Exchange limit was set in place to stop people from making "too much money" and also to stop huge price manipulation. This limit means that you can only buy a certain amount of each item every four hours, also you have to wait four hours before you can sell an item you just brought. Fortunately there is no limit for how many you can sell at once, as long as you have waited 4 hours after you brought the items.

Here are the limited items and how many you are able to buy every four hours:

Rares - 2
Treasure Trail Items - 2
God Wars Armour - 10
Barrows - 10
Most Weapons/Armour - 100
Flatpacks - 100
Seeds - 1,000
Jewellery - 5,000
Talismans - 5,000
Bows - 5,000
Gems - 5,000
Bow Strings - 10,000
Unstrung Bows - 10,000
Vials - 10,000
Arrows - 10,000
Cowhides - 10,000
Soft Clay - 10,000
Ashes - 10,000
Feathers - 10,000
Bones - 10,000
Potions - 10,000
Herbs - 10,000
Food - 10,000
Spirit Shards - 10,000
Bars - 10,000
Fish - 20,000
Ores - 25,000
Logs - 25,000
Runes - 25,000

Please correct me if  I have made a mistake.