Diamonds are the premium currency in Giraffe Evolution, with the basic currency being Coins.
You can use diamonds to buy giraffes from the Giraffe Shop, with prices increasing the more giraffes you buy.
There are several ways to acquire diamonds:
- Buying them in the in-game Shop as an in-app purchase (i.e. using real money)
- Watching an advertisement in the shop
- Wishing for diamonds when recreating the Universe
Diamonds are mainly used to buy giraffes from the Giraffe Shop.
The top banner displays your current balance of coins and your coin production rate in coins per second (also displayed as cps). The display shortens the digit length by displaying 1,000,000 as 1.0 Mi, and 1,000,000,000 as 1.0 Bi, etc.
When the fusion bar in the top banner is filled the coin production rate is temporarily doubled. The bar gradually fills each time two giraffes are fused. Various upgrades can be bought to reduce the number of fusions to fill the bar, and the length of the bonus.
Purchasing the tractor from the upgrade shop allows coins to be collected for up to 2 hours while the app is closed. Further upgrades to the tractor can be purchased, extending it further in increments of half an hour, eventually up to 6 hours.
Coins can be used to buy giraffes from the Giraffe Shop, with the prices increasing the more giraffes you buy. They also allow you to purchase other upgrades from the shop.
There are also in-app purchases which allow you to instantly multiply your coin total by 10, or double your coin production forever.