
Vintage Card Centering: PSA 7 and 8 Tolerances and How SGC Compares
PSA uses one centering scale for every era: PSA 8 is 65/35, PSA 7 is 70/30, PSA 6 is 80/20, backs 90/10. How that plays out on pre-1980 cards, plus SGC's ladder.
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Major grading companies supported: PSA, BGS, CGC, SGC, and TAG standards.
In-depth answers to the centering and grading questions collectors actually ask.

PSA uses one centering scale for every era: PSA 8 is 65/35, PSA 7 is 70/30, PSA 6 is 80/20, backs 90/10. How that plays out on pre-1980 cards, plus SGC's ladder.

PSA 10, BGS 9.5, CGC Gem Mint 10 and TAG 10 all sit at 55/45 on the front; backs and Pristine tiers differ. Measure your card and see which label it can reach.

Lorcana card centering guide: where to measure on the ink-colored frame, enchanted full-arts and the back, plus PSA, BGS, CGC, SGC and TAG tolerances for a 10.