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How Card Condition Affects Value

The four sub-grades that drive condition scoring, how a single grade tier swings price, and the most common condition mistakes raw sellers make.

Published March 16, 2026Updated May 20, 20261 min read

Short answer

Card condition is evaluated on centering, corners, edges, and surface. A single grade tier can swing price by 50–1000% depending on the card and the population at each grade. Modern high-end cards are most condition-sensitive; vintage is more forgiving on a per-grade basis but compounds quickly.

Card condition is the most quantified variable in collectibles. Four sub-grades drive the overall score; centering and surface are the most common downgrade triggers.

The four sub-grades

  1. Centering. Print position within the card's borders. The most consistently strict criterion — 50/50 is rare.
  2. Corners. Looking for sharp, undamaged corners. Even minor softness drops grades.
  3. Edges. Edge integrity along all four sides — chips, whitening, or fraying penalize.
  4. Surface. Print quality, scratches, scuffs, gloss. Surface scratches are the next most common downgrade after corners.

A PSA 10 (“Gem Mint”) requires all four sub-grades to be at or near perfect. A PSA 9 (“Mint”) allows one minor flaw. A PSA 8 (“Near Mint-Mint”) tolerates two minor flaws.

How condition compounds value

For a modern rookie card, the sold-price spread can look like:

GradeApproximate multiplier vs PSA 7
PSA 1020×–50×
PSA 9.5 / BGS 9.58×–20×
PSA 94×–8×
PSA 81.5×–3×
PSA 7 (baseline)1×

These multipliers are illustrative — actual multipliers depend on the card, the player, the issue year, and the current market.

The mistakes raw sellers make

  • Self-grading optimistically. Almost everyone's “PSA 10” raw is actually a PSA 9.
  • Ignoring centering. Owners check corners but skip the centering measurement.
  • Submitting flawed cards. Pre-screen your own cards with a 10× loupe before submitting.
  • Mixing grading services in one submission strategy. Decide based on the buyer pool for that card.

For the economics of when grading is worth it, see Raw vs Graded.

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