From SGC’s own grading scale as captured on 2026-09-17 (gosgc.com blocks automated reading). Checked 2026-09-17. Official page.
“65/35 or better centering, four sharp corners*.”
On the front line alone, a worst axis worse than 60/40 and up to 65/35 meets the 8.5 NM-MT+ line but not the 9 Mint line. Ratio pages: 65/35.
| Grade | Front | Back |
|---|---|---|
| 10 Pristine | 50/50 | — |
| 10 Gem | 55/45 | — |
| 9.5 Mint+ | — | — |
| 9 Mint | 60/40 | — |
| 8.5 NM-MT+ | 65/35 | — |
| 8 NM-MT | 65/35 | — |
| 7.5 NM+ | 70/30 | — |
| 7 NM | 70/30 | — |
| 6 EX-MT | 75/25 | — |
| 5 EX | 80/20 | — |
| 4 VG-EX | 85/15 | — |
| 3 VG | 90/10 | — |
| 2 Good | 90/10 | — |
| 1.5 Fair | 90/10 | — |
| 1 Poor | — | — |
8.5 NM-MT+: 65/35 front. As published: "65/35 or better centering, four sharp corners*."
9 Mint needs 60/40 front, against 65/35 front for 8.5 NM-MT+.
On the published front lines alone, a worst axis worse than 60/40 and up to 65/35 meets the 8.5 NM-MT+ line but not the 9 Mint line. Of the ratios with their own page: 65/35. 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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