Star Grading Authenticator

Preserving rarities.
Elevating value.

We protect and authenticate your cards with the rigor of the world's leading grading companies. Pre-register to be notified at launch.

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International standards on Brazilian soil.

We brought the rigor and excellence of the world's leading grading companies to Brazil. No international red tape, no endless turnaround times. The same exacting standard, right here in Brazil.

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Meet the Gold Star grade.

Gold Star is the highest recognition on our scale, reserved for cards that reach 99.0% or higher in the Condition Score and in each of the four criteria, with no structural defects. When a card gets there, it isn't just flawless. It's exceptional.

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The S.T.A.R. criteria

  • SSurface
  • TTrue Centering
  • AAll Edges
  • RRefined Corners

SGA evaluates every card on four pillars: centering, corners, edges and surface. Each one gets a detailed analysis and produces a Condition Score from 0.0% to 100.0%. That score is the starting point for the SGA Grade, from Authentic to Gold Star 10+, which is then subject to the worst-criterion rule and to the grade ceilings for creases and dents.

Cards that meet the Gold Star 10+ criteria enter the Gold Star Ranking, which lists the 10 best known copies of each card, ordered by highest Condition Score.

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Pre-launch

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SGA — Star Grading Authenticator