Weserville cash!

well this week in econ class we started a new unit on money and spit into islands that only have a certain material that is special to that island. Our island has diamonds and we plan on using these diamonds as a currency on this island to buy things. Also we have a currency in weserville now, now we need to buy different things in the class and this goes with the lesson were we learn about currency and what can be currency. Right now i don't have much money because the weserville bank isn't working right now so i am poor right now.