MANNA KINGDOM REFERENCE
Standardized grading definitions for TCG, sports cards, and professional grader scales.
We use industry-standard TCG grading (NM → Damaged). Condition directly affects buy price and resale value.
PSA, BGS, and CGC use numeric scales. Higher numbers are better. A 10 in each system is roughly equivalent, but the standards differ.
Sports cards have some grading nuances that differ from TCG cards.
Centering
Measured as left/right and top/bottom percentages. PSA 10 requires 55/45 or better. PSA 9 allows 60/40.
Corners
Inspect under light for rounding, fraying, or chipping. Any corner defect is the primary grade limiter for vintage cards.
Edges
Look for nicks, chips, roughness, and notching. Beckett evaluates edges as a separate subgrade.
Surface
Scratches, print lines, staining, loss of gloss, and creases. Foil/chrome cards are especially susceptible to surface damage.
Print Defects
Factory print lines, color bleeding, or misregistration. These are not counted against grade in most cases.
Rookie Cards
The year of a player's first licensed card. Always check for the 'RC' or 'Rookie' designation — autographed rookie cards command the highest premiums.
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