
Surface is one of four grading categories and often the hardest to self-assess. Here's what graders look for.

A technical look at how grading companies measure card centring and what ratios you need for each grade.

White spots on card edges and corners are the most common reason cards lose points during grading.

A deep look at card centring, how it's measured, why some sets are worse than others, and how it affects your grade.