Grade A+ Pristine Condition
There will not be any marks or scratches at all. As good as brand new.
Grade A Excellent Condition
May show minor signs of handling or use with insignificant blemishes at the most.
Grade B Good Condition
The handset has some scuffs, marks or surface scratches only. Any scratches or scuffs are completely cosmetic and do not affect the functions of the phone.
Grade C Average Condition
Fully Tested & Working Condition with signs of obvious daily use. The screen may have some marks, but it does not affect the use of the phone or impair any vision on the screen.