How Card Grading Works: PSA, BGS, and CGC Explained

You've seen them in showcases, YouTube videos, and collector posts, Pokemon cards sealed in plastic slabs with a grade number on the front. But what does card grading actually mean, and is it worth it for your collection? This guide breaks down everything you need to know about card grading.

What Is Card Grading?

Card grading is the process of having a professional third-party company evaluate the condition of your card and assign it a numeric grade, typically on a 1–10 scale. The card is then sealed in a tamper-evident plastic case (called a "slab") with the grade permanently displayed. Grading provides authentication (confirming the card is genuine) and a standardized condition assessment that buyers and sellers both trust.

The Three Main Grading Companies

PSA (Professional Sports Authenticator)

PSA is the most recognized name in card grading and typically commands the highest resale premiums. A PSA 10 (Gem Mint) is the most desirable grade for collectors. PSA grades on a 1–10 scale and is known for its brand recognition and strong secondary market demand.

BGS (Beckett Grading Services)

Beckett is known for its sub-grade system, which grades four aspects of a card separately: centering, corners, edges, and surface. The overall grade is determined by these sub-grades. A BGS 9.5 (Gem Mint) with all "10" sub-grades is called a "BGS Black Label" and is extremely rare and valuable.

CGC (Certified Guaranty Company)

Originally known for comic book grading, CGC expanded into trading cards and has grown quickly in the Pokemon community. CGC is often praised for faster turnaround times and competitive pricing, making it a popular choice for newer collectors.

Understanding the Grading Scale

Here's what the grades generally mean across all major companies:

• 10 (Gem Mint / Pristine) – Near-perfect card with perfect centering, no surface scratches, sharp corners, and no print defects.
• 9 (Mint) – Excellent card with only minor, barely visible imperfections.
• 8 (Near Mint / Mint) – Light handling wear; still a very attractive card.
• 7 (Near Mint) – Moderate wear visible on close inspection.
• 6 and below – Visible wear, creases, or damage. Still collectible, but significant discounts apply.

What Factors Affect a Card's Grade?

Graders evaluate four main areas:

• Centering – How centered is the artwork within the card border? PSA requires 60/40 or better for a PSA 10.
• Corners – Even minor whitening or fraying on corners can drop a grade significantly.
• Edges – Nicks and roughness along the card's edges are closely inspected.
• Surface – Print lines, scratches on the holo, and surface indentations all impact the final grade.

Is Buying a Graded Card Worth It?

For high-value cards, buying graded gives you peace of mind. You know exactly what condition you're getting, and the authentication protects you from counterfeits a real concern with vintage holos like Base Set Charizard. Graded cards are also easier to display and store safely in the long term.

For budget cards or commons, grading usually isn't cost-effective since the grading fee can exceed the card's value. Raw (ungraded) singles are perfectly fine for most collectors building a set.

Shop Graded Cards

Looking to add graded cards to your collection? Browse our Graded Cards collection for PSA, BGS, and CGC graded cards singles. 

If you prefer raw singles, we have a huge selection across our Scarlet & Violet and Original Series Base Set collections as well.