SGC Grading

Sportscard Guaranty Company (SGC) is a respected third-party grading service renowned for its expertise in vintage cards and distinctive "tuxedo" slab design. Founded in 1998, SGC has carved out a significant niche as the go-to grader for serious vintage collectors and those seeking quality authentication at competitive prices.

Also on this page
  • Company Overview
  • History and Founding
  • Company Philosophy
  • The Tuxedo Slab
  • Iconic Holder Design
  • Holder Specifications
  • Security Features
  • Grading Scale
  • Numerical Scale
  • Vintage Grading Context
  • Service Levels and Pricing
  • Current Service Tiers
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