You should be able to sell diamonds to the server. This will increase the value of diamonds. You can sell almost everything else why not diamonds?
iEvo tells the truth. Diamonds were recently added to the server price list as $15 per. Try /worth diamond.
The server shouldn't be the main thing people sell diamonds to. The price should be set by how much people are willing to pay for them. Diamonds and EXP are two things that have a price based on what players will pay and in my opinion they should be kept that way.
I personally think that nothing should be sold to the server. In a true economy you can't simply "/sell hand" other wise every single person in the world would become a merchant. A true economy is based off of supply and demand and it will always be based off of that.
Having everything sold to players would make starting even harder for new players, also not to mention that it would likely cause more harm to the economy then good. The server price is just a baseline, there are goods that sell over server price.
