What card grades mean for value (PSA, BGS, CGC)

For collectible trading cards, condition is value — and a third-party grade is the market’s shared language for condition. Two copies of the same card can trade for wildly different prices based on a single grading point, which is why grade, not just the card, defines the asset.

The major grading companies

PSA, BGS (Beckett) and CGC are the most widely-recognized graders. Each seals a card in a tamper-evident holder (“slab”) with a label stating the card, the grade, and a unique certification number you can verify with the grader. That certification is what makes a graded card liquid: buyers trust the slab, so they trade on the grade.

Reading the scales

Most modern grading runs on a 1–10 scale. A PSA 10 is “Gem Mint”; BGS and CGC add tiers above a base 10 (BGS “Black Label”, CGC “Pristine”/“Perfect”) for cards that are flawless across every sub-grade. As you move down the scale — 9, 8, and below — surface, centering, corners and edges show progressively more wear, and the price typically steps down with each grade.

Because the steps are not linear, the jump from a 9 to a 10 is often the largest single move in a card’s value, especially for sought-after cards where Gem Mint copies are scarce.

Why we price each grade separately

Since a 10 and a 9 are effectively different products with different demand, blending their sales into one number would mislead. We track and price each company-and-grade combination on its own, so the reference price you see is for the exact asset you hold or want — and the trade history shows the sales for that grade alone.