Mastering the 4 Cs of Grading

Condition is the single most important factor in determining the value of a philatelic collection, often outweighing the rarity of the design itself.

Centering and Margins

• Perfect centering ensures that the design is balanced and visually appealing to the viewer.
• Generous margins are required for stamps to fit properly in standard album mounts without obstruction.
• Asymmetric centering can significantly reduce the grade from a Gem to a Fine or Very Fine.

Gum and Hinge Marks

• Mint stamps should have original gum that is free from discoloration or foxing.
• Hinge remnants can easily damage the gum and lower the overall grade of the item.
• Never attempt to remove a hinge from a valuable stamp unless you are a trained professional.

By strictly adhering to these grading standards, collectors can make informed decisions when buying or selling their inventory.