With reference to the properties of carbon in different forms, consider the following statements:

1. Graphite consists of multiple layers of graphene, where each layer is a single sheet of carbon atoms arranged in a hexagonal lattice.

2. Diamonds and graphite have different chemical compositions. 

3. Fullerene is another form of carbon, where carbon atoms are arranged in a spherical structure resembling a soccer ball.

Which of the statements given above is/are correct?