Centering ceiling by service for a card whose worst axis measures 80/20 (front; back not considered here). The ceiling is the highest grade whose published centering line the card meets. Corners, edges and surface can hold or lower it, and PSA gives a 5% front leeway for cards that grade PSA 7 or better, so up to 5 points beyond its line may still pass on strong eye appeal. How to measure the ratio.
Measure your own card in the browser →| Service | Centering ceiling | |
|---|---|---|
| PSA | EX-MT 6 | line: 80/20 front |
| Beckett (BGS) | VG-EX 4 | line: 80/20 front |
| CGC Cards | VG/Ex+ 4.5 | line: 85/15 front |
| SGC | 5 EX | line: 80/20 front |
| TAG | EX 5 | line: ~80/20 front |
| ACE | VG 3 | line: under 85/15 front |
“~” is the company’s own “approximately”; “under” marks ACE’s lines, which exclude the boundary (“less than” or “greater than” a split), so a card exactly on the figure does not meet them.
Not on PSA’s published lines: 80/20 is outside PSA’s ~55/45 front line for GEM-MT 10, and the highest PSA line it meets is EX-MT 6 (80/20).
PSA (EX-MT 6) on published lines alone. Market value per grade differs by service, which is what the Advisor accounts for.
Other ratios: 50/50 · 55/45 · 60/40 · 65/35 · 70/30 · 75/25 · 85/15 · 90/10 · six services by grade · most lenient grader · every service’s lines