PSA • SGC • BGS • CGC • Vintage • Modern • Rookie cards

Buy the card, not only the number on the label.

Verify the certification, inspect the holder, compare eye appeal, understand population data and check multiple grades before paying a slab premium.

Core rule: A valid certification number is one piece of evidence. Compare the physical holder, label, card image and official record together.
ROOKIE
CARD
VINTAGE
STAR
Marketplace research

Use five comparisons for every card.

1. Same grade

Current graded examples

Learn the market’s current asking language.

Current slabs
2. Completed sales

Actual transactions

Match exact card, grade, company and qualifier.

Completed sales
3. Raw version

Measure the slab premium

Use realistic raw-condition comparisons.

Raw cards
4. Adjacent grades

Compare one grade up and down

Premiums are rarely linear.

Grade ladder
5. Collections

See graded-card lots

Lots can trade at discounts to individually marketed stars.

Graded lots

eBay links use campaign 5339137014 and custom ID gradedsportscards. Asking prices, labels and population counts are not guarantees of authenticity or value.

Should you submit?

Model the grade risk before paying fees.

Compare raw value, realistic grade outcomes, shipping and total grading costs.

Open grading calculator
Does the card match the grade?

Use a structured comparison worksheet.

Centering, corners, edges, surfaces, print and eye appeal all deserve attention.

Read the guide