A beginner's guide to card grading: what it means, why it matters, and how PSA, BGS, and SGC compare so you can decide which grading company is right for your cards.
Card grading is one of the most talked-about topics in the hobby — and one of the most misunderstood. Whether you're sorting through a collection you inherited, buying raw cards at a show, or trying to maximize the value of a key card, understanding grading is essential. This guide breaks down what grading is, why it matters, and how PSA, BGS (Beckett), and SGC compare.
Card grading is the process of having a professional third-party company evaluate a card's condition and assign it a numeric grade, typically on a 1–10 scale. The card is then sealed in a tamper-evident hard plastic case called a slab.
A graded slab does three things:
That last point is what drives the premium. A raw card listed as "NM" is one person's opinion. A PSA 9 is a standardized, widely trusted grade that the entire market has priced around.
The value difference between grades can be dramatic. A raw copy of a key card might sell for $50. A PSA 9 of the same card might sell for $200. A PSA 10 might sell for $1,000 or more. The grade doesn't just protect the card — it dramatically changes what the market will pay for it.
This is why collectors at card shows spend so much time inspecting raw cards. If a card has PSA 10 potential, buying it raw and submitting it can be a significant upside play.
PSA is the most recognized name in card grading worldwide. Their slabs are the most liquid on the secondary market — when a PSA-graded card sells on eBay, there's a deep pool of buyers who understand and trust the grade.
PSA grades: 1–10 (whole numbers, with half grades rarely used)
What PSA is known for:
PSA is the best choice when:
BGS (Beckett) is PSA's main competitor and is especially strong in the modern sports card market. BGS uses a sub-grade system, scoring four categories separately: centering, corners, edges, and surface. The overall grade is determined primarily by the lowest sub-grade.
BGS grades: 1–10, with half-point increments and a coveted BGS 9.5 "Gem Mint" and rare BGS 10 "Pristine"
What BGS is known for:
BGS is the best choice when:
SGC is the third major player and has built a strong reputation for vintage pre-war and tobacco-era cards. Their slabs have a distinctive half-moon display window and are growing in popularity with both vintage collectors and the Pokémon community.
SGC grades: 1–10, including half-point grades
What SGC is known for:
SGC is the best choice when:
| Factor | PSA | BGS | SGC |
|---|---|---|---|
| Market liquidity | Highest | High (modern) | Growing |
| Vintage sports | Excellent | Good | Excellent |
| Modern sports | Excellent | Excellent | Good |
| Pokémon | Best | Good | Strong |
| Sub-grades | No | Yes | No |
| Turnaround | Varies | Varies | Often faster |
| Cost | Mid–High | Mid–High | Lower |
For most collectors submitting their first cards, PSA is the safest default due to its market recognition. If you have a modern card in virtually perfect condition and want sub-grades, BGS may earn you more. If you're on a budget or have vintage tobacco cards, SGC deserves serious consideration.
Grading is only worth it if the card can earn a grade that justifies the submission cost. Before submitting, inspect:
At card shows, you can often find raw cards with PSA 9 or 10 potential if you know what to look for. That's where the real opportunity is.
Many dealers at card shows sell both raw and graded cards. Graded slabs are priced using Alt and eBay sold comps for that specific grade — always check before you pay. A PSA 8 and PSA 9 of the same card can have dramatically different values, so the label matters enormously.
If you're buying raw cards at a show to submit, build in the cost of grading when you negotiate the purchase price. Submission fees, shipping, and turnaround time all factor into whether the flip is worth it.
The best place to find raw cards with grading potential is still a local card show. Browse the CardShows.io directory to find upcoming events near you, sorted by state and date.