PSA vs BGS vs CGC: Which Slab Actually Holds Its Value
Two cards, same card, same grade, different companies on the label — and routinely different prices. That gap confuses new buyers more than almost anything else in the hobby. Here's what actually drives it, and how we model it.
Why the grader changes the price at all
A grade is a judgement, and the market pays for judgements it trusts and can resell easily. Two forces do most of the work: liquidity (how quickly a slab finds a buyer at a fair price) and premium (how much extra the market pays over a raw copy). A grader can be respected but thinly traded, which shows up as a slower sale rather than a lower headline price.
PSA — the liquidity benchmark
PSA is the most widely traded slab in trading cards, and that's its central advantage: the deepest buyer pool, the fastest sales, and the largest gem premium. If you plan to resell, PSA is the safest default. The trade-off is cost and turnaround, and because PSA grades so much volume, population numbers on modern cards can be enormous — a PSA 10 is common in many current sets.
BGS — subgrades and the Black Label
Beckett's distinguishing feature is subgrades: separate marks for centring, corners, edges, and surface. That granularity is genuinely informative, and it creates a tier above a clean 10 — the Black Label, awarded when all four subgrades are 10, which commands a substantial premium over an ordinary gem. BGS has historically been strongest on modern cards, and its slab is well regarded for protection.
CGC — growing, usually a discount on vintage
CGC came to trading cards from comics, where it is the dominant grader, and has grown quickly. Acceptance is broad and improving, but on vintage cards especially it typically trades at a discount to PSA for the same numeric grade. It also offers a Pristine 10 designation above a standard 10. If you're buying to hold rather than flip, that discount can work in your favour.
SGC — the vintage specialist
SGC has a strong reputation for vintage, a distinctive black-matted slab that presents cards well, and turnaround times that are often faster than the larger graders. It's less liquid than PSA overall but well respected in the era where it matters most.
The budget tier — know what you're buying
A number of lower-cost graders exist, and they serve a real purpose: getting a cheap card into a case for protection and presentation. What they generally don't do is add resale premium. If your goal is to sell into the wider market rather than tidy a personal collection, a budget slab is often worth little more than the raw card.
How SplitShot models this — transparently
We don't treat all slabs as equal. Every grader in our engine carries two weights: a liquidity factor that widens or narrows the modelled buy/sell spread, and a premium weight that scales how much of the gem-mint premium that grader actually captures. PSA sits at the top on both. BGS is close behind. CGC and SGC are modelled a step below on premium while remaining highly liquid, and the budget tier is discounted sharply. We also scale the whole premium by era, because a gem vintage card is genuinely scarce while a gem current-era card often isn't. Those numbers are estimates from market behaviour, not published fact — which is exactly why we show them as a model with a confidence score rather than presenting them as comps.
So which should you buy?
If you intend to resell, or you want the widest exit, buy PSA. If you value the extra information and the ceiling that a Black Label offers, BGS. If you're buying to keep and want more card for your money, a CGC or SGC slab of the same grade is frequently the better value. And whichever you choose, the grade and the grader together should be checked against a real valuation before you pay — that's what our graded buying checklist is for.