Coin Grading Explained: PCGS vs NGC & Understanding Authenticity
Demystify ancient coin grading scales. We compare PCGS vs NGC and explain why a Certificate of Authenticity is vital before you buy rare coins online.
Professional grading removes the guesswork from coin collecting.
What is Slabbed Coinage?
'Slabbed' coins are ultrasonically sealed in plastic holders by companies like NGC or PCGS, preserving their condition and verifying their grade.
The Sheldon Scale
Most modern grading uses the 1-70 scale. For ancient coins, however, companies often focus more on 'Strike' and 'Surface' quality.
The Role of COAs
A Certificate of Authenticity (COA) from a trusted dealer with 30+ years of experience is often just as valuable as a third-party grade for ancient pieces.
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