Slabbed. Sealed. Certified.
MAS grading pairs a protective, tamper-evident slab with a holographic, publicly verifiable COA — so your cards and collectibles are protected and authenticated for life. Now available to collectors nationwide and growing fast.
Protection and authentication in one
Every graded item is sealed, certified, and independently verifiable — giving buyers and sellers total confidence.
Tamper-evident slab
Your collectible is sealed in a rigid, protective case built to guard it for the long haul.
Holographic COA
A holographic, publicly verifiable certificate is paired with every graded item.
Verified for life
Anyone can confirm the grade and authenticity in real time at the MAS lookup.
Built for value
Protected, authenticated and easy to verify — the way serious collectors buy and sell.
Grading lives at grading.mascertified.com
Head to our dedicated grading site to choose a service level, submit your cards and collectibles, and track your order. Backed by the same trusted MAS verification you already rely on.
Go to MAS GradingAuthenticated for life
- Rigid, tamper-evident protective slab
- Holographic, serialized COA
- Free real-time public verification
- Trusted MAS certification standard