Centering ceiling by service for a card whose worst axis measures 90/10 (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 | VG 3 | line: 90/10 front |
| Beckett (BGS) | Good 2 | line: 90/10 front |
| CGC Cards | Very Good+ 3.5 | line: 90/10 front |
| SGC | 3 VG | line: 90/10 front |
| TAG | VG 3 | line: ~90/10 front |
| ACE | fails every published line |
“~” 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: 90/10 is outside PSA’s ~55/45 front line for GEM-MT 10, and the highest PSA line it meets is VG 3 (90/10).
CGC (Very Good+ 3.5) 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 · 80/20 · 85/15 · six services by grade · most lenient grader · every service’s lines