Four companies do most of the third-party grading in sports cards: PSA, BGS (Beckett), SGC and CGC. They all do the same basic job — authenticate the card, assess its condition on a 1 to 10 scale, and seal it in a tamper-evident holder — but they differ in how they present grades, what their slabs look like, and, most importantly for resale, how much the market pays for the same card in each holder. Newer entrants keep arriving as well, and TAG’s push into tech-driven grading shows how hard that group is to break into.
The short version: PSA slabs generally command the strongest and most consistent resale prices across modern and vintage sports cards. SGC has a strong following in vintage. BGS is valued for its subgrades and its top-tier designations. CGC came from comics and is strongest in trading card games, though it grades sports too.
Below is the actual comparison, plus how to decide which one fits the card in your hand.
PSA vs BGS vs SGC vs CGC at a glance
| PSA | BGS (Beckett) | SGC | CGC | |
|---|---|---|---|---|
| Scale | 1 to 10, with half grades at some levels | 1 to 10 in half-point increments, including 9.5 | 1 to 10, with half grades | 1 to 10, with half grades |
| Subgrades | Not shown on the standard label | Yes, four subgrades for centering, corners, edges and surface | Not shown on the standard label | Available on some tiers |
| Top designations | Gem Mint 10 | Pristine 10, and Black Label 10 when all four subgrades are 10 | Pristine 10 above Gem 10 | Pristine 10 and Perfect 10 |
| Slab look | Clear holder, red-and-white label | Thicker holder with an inner sleeve, coloured label by grade tier | Black inner frame that many collectors prefer for vintage | Clear holder with a distinctive label design |
| Strongest reputation in | Modern and vintage sports across the board | High-end modern where subgrades and Black Label matter | Vintage, and increasingly modern | Trading card games, with a growing sports presence |
| Typical resale effect | Usually the highest, especially for common cards where the slab drives the price | Strong for 9.5 and above, softer below that | Solid, close to PSA on vintage, generally below on modern | Varies by category, strongest in TCG |
All four also run a public certification lookup, and checking the cert number is the first thing to do with any slab you did not submit yourself.
Fees, tiers and turnaround times change often at all four companies, so they are the numbers to read on the source rather than anywhere else. Each publishes a service-level page that lists its tiers by declared value with the current price and turnaround estimate beside each one. That page, on the day you submit, is the only version worth planning around — the tier your card falls into is set by what you declare it is worth, so work out that number first.
What the resale gap actually is
People say a PSA slab sells for more. What is worth understanding is why — the longer answer is in how PSA became the default — and where it stops being true.
- Liquidity. PSA has graded more cards than anyone, so buyers see PSA slabs constantly, know what a PSA 9 looks like in practice, and can compare against a large number of sold listings. Familiarity reduces buyer hesitation, and reduced hesitation shows up as a higher price.
- Comp density. A card with many recent PSA 9 sales has a clear market price. The same card with two SGC 9 sales does not, so buyers bid conservatively. The supply side of that picture is in the population report, which counts how many exist in each grade.
- Registry and set collecting. Collectors building registry sets need slabs from the company running that registry, which concentrates demand.
- It narrows on expensive cards. On a high-value card, buyers care about the card. On a mid-value card, the holder is a larger fraction of what they are buying, so the slab premium matters more in relative terms.
Check the gap yourself rather than trusting a rule: search a specific card on eBay, filter to Sold Items, and compare recent sales of the same card in the same numeric grade across different companies. If a card has almost no sold history in one company’s holder, that absence is itself the answer about liquidity.
Subgrades: BGS’s real differentiator
BGS prints four subgrades on the label: centering, corners, edges and surface. The overall grade is calculated from them, weighted rather than averaged, so a card can carry a weak subgrade and still land at a strong overall number.
Why collectors like this:
- It tells you exactly why a card did not grade higher, which is genuinely useful information.
- It creates the Black Label 10, awarded when all four subgrades are 10. That designation carries a real premium because it is difficult to achieve.
- It makes a BGS 9.5 a meaningful step between a 9 and a 10, which some collectors prefer to a system without that rung.
The trade-off is that subgrades give a buyer more reasons to hesitate. A BGS 9 with a 8.5 centering subgrade is publicly a poorly centered card in a way a PSA 9 is not.
How the four assess a card
All of them look at the same four attributes, whether or not they print them:
- Centering: the ratio of border widths, left to right and top to bottom, on the front and, with more tolerance, the back. Tighter ratios are required for higher grades.
- Corners: sharpness under magnification. Fuzz, white showing through, or any soft point pulls the grade down.
- Edges: chipping, nicks and rough factory cuts along all four sides, most visible on dark borders.
- Surface: print lines, scratches, dimples, gloss loss and the fine scuffing that appears on chrome and foil when tilted under light.
Where they differ is tolerance and consistency, and every company’s standards have shifted over time. That is why people talk about grades from different eras of the same company as if they were different products. Two graders can look at the same card and disagree, which is why resubmission exists as a practice.
Choosing for the card you actually have
- Modern card you plan to sell: PSA is the default choice for resale liquidity, unless you are chasing a Black Label with a visibly perfect card.
- Vintage card: PSA and SGC are both well accepted, and many vintage collectors prefer the SGC holder’s look. Compare sold comps for your specific card in both.
- A card you believe is flawless: BGS is the one that can certify that with four 10 subgrades, and the resulting designation is worth pursuing if you are confident.
- Trading card game cards: CGC has the deepest following in that category.
- A card you are keeping: pick whichever holder you like looking at. This is a real answer, not a joke, and it applies to a lot of collections.
- Bulk common cards: the honest answer is often none of them. Run the break-even math against the raw price first.
Practical next step
Take the card you are actually considering. Search its sold listings filtered by each company’s slab and write down the recent prices side by side. Then look up the current cost and turnaround for the tier that card requires at each company. Those two sets of numbers, for your specific card, settle the question far better than a general reputation ranking — and once you have chosen, the submission itself is mostly paperwork and packing.
Common questions
Why do PSA slabs sell for more than other companies?
Volume and familiarity. PSA has graded far more cards, so buyers see many comparable sales and know what to expect from each grade. That certainty translates into higher bids. The gap tends to be widest on common and mid-value cards and narrower on genuinely expensive ones.
Is a BGS 9.5 the same as a PSA 10?
No. They are different scales with different top ends. BGS 9.5 is Gem Mint on the BGS scale and sits below BGS Pristine 10 and Black Label. Buyers price them separately, so compare sold listings rather than trying to convert between systems.
Should I use SGC for vintage cards?
Many vintage collectors do, both for the holder’s appearance and for the company’s long history with older cards. PSA remains widely accepted in vintage too. For any specific card, compare recent sold prices in both holders before deciding.
Can I crack a slab and resubmit to a different company?
Yes, people do it, and it is called crossing over. Several companies also offer a crossover service where they grade the card while it is still in the other holder and only break it out if it meets a minimum grade you specify. The risk is real: the new grade can come back lower, and you have paid twice. Terms differ by company and change, so read the crossover instructions for the service you plan to use — particularly what happens, and what you are charged, if the card misses the minimum grade you set.
