Centering ceiling by service for a card whose worst axis measures 60/40 (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 | MINT 9 | line: ~60/40 front |
| Beckett (BGS) | NM-MT 8 | line: 60/40 front |
| CGC Cards | Mint 9 | line: 60/40 front |
| SGC | 9 Mint | line: 60/40 front |
| TAG | Mint 9 | line: ~60/40 front |
| ACE | Mint 9 | line: under 65/35 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: 60/40 is outside PSA’s ~55/45 front line for GEM-MT 10, and the highest PSA line it meets is MINT 9 (~60/40). It is within 5 points of the GEM-MT 10 line (~55/45). PSA adds: "A 5% leeway is given to the front centering minimum standards for cards which grade PSA 7 or better." A card inside the published figure meets it; up to 5 points beyond may still pass on strong eye appeal.
On published lines alone, PSA (MINT 9), CGC (Mint 9), SGC (9 Mint), TAG (Mint 9) and ACE (Mint 9) are level at the top. Market value per grade differs by service, which is what the Advisor accounts for.
Other ratios: 50/50 · 55/45 · 65/35 · 70/30 · 75/25 · 80/20 · 85/15 · 90/10 · six services by grade · most lenient grader · every service’s lines