- Diamond has a crystalline lattice structure where each carbon atom is tetrahedrally bonded to four other carbon atoms with strong covalent bonds.
- Non-directional covalent bonds do not exist in the diamond structure; instead, every bond is directed and strong.
- The C-C bond length in diamond is approximately 154 pm, which is a characteristic feature of its structure.
- Diamond is not used in the manufacture of tungsten filaments; instead, tungsten is used for this purpose due to its high melting point and conductivity.