Question: how does bgs grade cards?
Answer: Beckett grades their cards on a scale of 1-10 with sub-grades (. 5s). ... They give each attribute a grade of 1-10, then combine those to give the card a final grade of 1-10. Anything above a 9 is worth book value or greater, as BGS 9 (known as a "Mint 9") is the condition expected of the card out of the pack.