Grading scale
A grading scale is the set of numbers a grading company uses to rate a card's condition, most often 1 to 10, with each number defined by limits on centering, corners, edges and surface.
Also called grade scale.
In more detail
Most companies grade on a 10-point scale. CGC describes its scale that way and spells out what each number allows in the four areas a grader looks at. Some companies add half points, and TAG goes further: it scores each card out of 1,000 points and then turns that score into the familiar 1 to 10 grade.
The top of the scale is where companies differ most. CGC keeps a Pristine 10 label for cards that are flawless under 10-times magnification, and gives an ordinary 10 to a card that falls short of Pristine on one point. Beckett asks for a 10 in all four subgrades before it awards its Black Label.
Before you compare prices across companies, check which scale a slab uses. The same card can land on different numbers at different companies, so a 9 from one is not a promise of a 9 from another.
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