Read from CGC Cards’ grading scale page. Checked 2026-10-28. Official page.
“Centering is not to exceed approximately 55/45, and reverse centering is not to exceed 75/25.”
“The centering is 50/50, and the card has flawless color and registration.”
On the front line alone, a worst axis of 50/50 meets the Pristine 10 line, the top published line. A worst axis worse than 50/50 and up to ~55/45 meets the Gem Mint 10 line but not the Pristine 10 line. Ratio pages: 50/50 (Pristine 10) · 55/45 (Gem Mint 10).
| Grade | Front | Back |
|---|---|---|
| Pristine 10 | 50/50 | — |
| Gem Mint 10 | ~55/45 | 75/25 |
| Mint+ 9.5 | — | — |
| Mint 9 | 60/40 | 90/10 |
| NM/Mint+ 8.5 | — | — |
| NM/Mint 8 | 65/35 | — |
| Near Mint+ 7.5 | 65/35 | — |
| Near Mint 7 | 70/30 | — |
| Ex/NM+ 6.5 | — | — |
| Ex/NM 6 | 75/25 | — |
| Excellent+ 5.5 | — | — |
| Excellent 5 | — | — |
| VG/Ex+ 4.5 | 85/15 | — |
| VG/Ex 4 | — | — |
| Very Good+ 3.5 | 90/10 | — |
| Very Good 3 | — | — |
| Good 2 | — | — |
| Fair 1.5 | — | — |
| Poor 1 | — | — |
“~” is the company’s own “approximately”.
Gem Mint 10: ~55/45 front, 75/25 back. CGC says "approximately", so the line carries grader discretion. As published: "Centering is not to exceed approximately 55/45, and reverse centering is not to exceed 75/25."
Pristine 10 needs 50/50 front; Gem Mint 10 needs ~55/45 front, 75/25 back. Pristine 10, as published: "The centering is 50/50, and the card has flawless color and registration."
On the published front lines alone, a worst axis of 50/50 meets the Pristine 10 line, the top published line. A worst axis worse than 50/50 and up to ~55/45 meets the Gem Mint 10 line but not the Pristine 10 line. Of the ratios with their own page, 50/50 reaches Pristine 10 and 55/45 reaches Gem Mint 10. Corners, edges and surface can only hold or lower the grade.
Compare the two borders on each axis: a card whose left border is 57% of left plus right is 57/43. Services judge the worse axis, front and back separately. SlabbyPrep reads both from a photo and shows each border to a hundredth of a millimetre; on synthetic test photos, 97% of the readings it shows without a warning are within 1 percentage point (the methodology page has the full results).
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