About ASG

Authenticated Stamp Guaranty

The establishment of Authenticated Stamp Guaranty (ASG) in 2017 brought a higher level of expertise and protection to the world of philately.

ASG's team of expert graders use a highly precise 100-point grading scale to describe the condition of genuine stamps. ASG graders are fully impartial and never know the identity of a stamp's submitter. They are also prohibited from buying and selling stamps commercially.

After stamps are graded, they are encapsulated in ASG's secure, state-of-the-art holder with a certification label featuring the stamp's description and ASG grade. This patent-pending holder was engineered to provide superior long-term protection and preservation.

Stamps certified by ASG are backed by the comprehensive ASG guarantee of grade and authenticity. This guarantee helps to protect consumers, giving them greater confidence in ASG-certified stamps.

ASG is initially focused on the philatelic market in mainland China but plans to expand to other markets, including Hong Kong and the United States, in the near future. To learn more, visit ASGstamps.com.