Polish
The overall condition or smoothness of the Lab-Grown Diamond's surface. The smoother the surface of the Lab-Grown Diamond the more light pass through the facets making the Lab-Grown Diamond brilliant. Below are the following polish grades for a Lab-Grown Diamond.
Ideal ( ID ) - Flawless, best among the polish grade.
Excellent ( EX ) - Flawless at 10x magnification.
Very Good ( VG ) - Very difficult to locate at 10x magnification.
Good ( G ) - Difficult to see at 10x magnification.
Fair ( F ) - Slightly noticeable at 10x magnification.
Poor ( P ) - Quite noticeble by the human eye..