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Grading

Gem Mint

Also called: PSA 10, BGS 9.5

Gem Mint is the top everyday condition grade, a PSA 10 or a BGS 9.5. It means a card is essentially flawless to the naked eye, with sharp corners and clean surfaces.

Gem Mint describes a card with near-perfect centering, crisp corners, clean edges, and a flawless surface. On the common scales it is a PSA 10 or a BGS 9.5. Above it sit rarer tiers like BGS 10 Pristine and the Black Label.

Even brand-new cards straight from a pack often grade below Gem Mint because of tiny factory flaws.

Why it matters: the jump from a 9 to a Gem Mint 10 can multiply a card's price, so Gem Mint is the grade most collectors aim for and the one that drives the strongest sales.

This glossary is a plain-language reference for collectors, not financial or purchasing advice. Card values move, so always check recent sales before you buy or sell.

Related terms

Card gradingGrading is sending a card to a company that authenticates it and assigns a condition grade, usually 1 to 10, then seals it in a protective holder called a slab.PSAPSA (Professional Sports Authenticator) is the most popular card grading company. It uses a 1 to 10 scale where PSA 10 is Gem Mint, and its slabs are the most widely recognized.BGS (Beckett)BGS (Beckett Grading Services) grades on a 1 to 10 scale with half points and four subgrades. A BGS 9.5 is Gem Mint, and a BGS 10 with four perfect subgrades earns the Black Label.SubgradesSubgrades are the individual 1 to 10 scores a grader gives for a card's centering, corners, edges, and surface. Beckett (BGS) prints subgrades alongside the overall grade.CenteringCentering is how evenly a card's image sits within its borders, measured as a ratio like 60/40. Poor centering, or being off-center, is one of the most common reasons a card grades low.