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ASG Enhances Grading Scale by Adding ASG VF/XF 88 Grade

The new ASG VF/XF 88 grade further differentiates stamps near the top of the ASG grading scale. Learn more >

ASG Grading Stamps On-Site in Hong Kong in October

Learn more >

ASG Celebrates 1 Million Stamps Graded

The third-party certification service is brining greater security to the philatelic marketplace. Learn more >

ASG-certified Galloping Horses Stamp Sees Strong Finish at Auction

The 1978 souvenir sheet was in the spotlight at a Spink auction on May 20, 2023. Learn More >

ASG Shanghai Offers 20,000 RMB Bonus for New Stamp Graders Hired

Apply today to join a growing global group of companies that certify collectibles. Learn More >

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Verify ASG Certification

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What is ASG Certification Verification?

This tool can help you to verify that your ASG holder is genuine and has not been tampered with. It can also be a useful starting point to research your ASG-certified stamp.

Instructions

Enter a stamp's ASG certification number (circled in the image) to confirm its description and grade in ASG's database and, if available, view the images of the stamp taken by ASG.

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