Knowledge base: everything about card grading

Everything a collector wants to know about card grading, by the graders at WDTC. From your first submission to protecting your most valuable card.

What is card grading?

Card grading is the professional assessment of a trading card’s condition and authenticity. Learn how grading works and when it is worth it.

Grading in the Netherlands vs. shipping to PSA

PSA, BGS or a Dutch grading service? Compare costs, shipping, customs and turnaround, and pick what suits your cards.

What determines the grade: centering, corners, edges & surface

A trading card’s grade is determined by four subgrades: centering, corners, edges and surface. Learn what graders examine for each.

What is my Pokémon card worth?

A Pokémon card’s value depends on rarity, set, edition, popularity and above all condition. Here is how to determine your card’s market value.

How to package cards for grading

Sleeves, toploaders, padding and insured shipping: how to safely package your trading cards for a grading submission.