The four graders at a glance
PSA is the largest and most widely recognized grader of sports and trading cards, and its slabs are the most liquid across most categories. BGS, from Beckett, is known for its detailed subgrades and has a strong following for modern cards. SGC has a long history and a strong reputation for vintage cards in particular. CGC, which grew out of comic grading, has become a major force in trading card games including Pokemon.
All four authenticate the card, assign a grade on a scale topping out at a gem-mint 10, and seal it with a verifiable certification number. The differences are in emphasis and market perception, not in the basic service.
How they differ in practice
The practical differences that matter to a collector are liquidity and category preference. A grade from the company that a given category's buyers prefer tends to trade more easily and sometimes at a premium. That preference is not uniform: the grader that commands the most confidence for modern sports cards is not necessarily the one vintage or Pokemon collectors favor.
Subgrades are another difference. Some graders print separate marks for centering, corners, edges, and surface, which some collectors value for the extra transparency. Others give a single overall grade. Neither approach is wrong; they suit different preferences.
Grading records
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Which to choose for a card
Choose the grader whose slabs the buyers for that specific card trust most, because that is what drives resale liquidity. For a modern sports rookie, that calculus differs from a piece of vintage cardboard or a Pokemon chase card. When in doubt, look at how comparable graded copies of the card actually trade and in whose holders.
Whatever you choose, verify the certification number against the grader's database before a significant purchase. All four maintain lookups, and a cert that does not match its label is the clearest warning sign there is.
How CardGhost helps
Whichever grader you use, the grade and grader belong in your records, because they change both what a card is worth and how you should track it. CardGhost lets you record the grading company and grade on each card and break your collection value out by grade.
CardGhost is a manual tracker; it does not grade cards or fetch prices. Start free without a credit card and upgrade for unlimited cards. See the pricing page for details.
