CentOS, Unallocated space?

Afternoon,

Think I’m probably been a bit silly here but! I am creating a few VM’s to prep for some redhat exams and when I partition the system (in the initial install) I am allocating space to the root, swap etc but I am unallocating X amount of GB so when I commit these changes it shows that I have X amount of GB free, then I go through the installation process all without issue, what I want to know is where can I find the unallocated HD space I specified?

Thanks!