Products

Let customers speak for us

from 90 reviews

Great quick turnaround, excellent customer service and very fair on the grading.

David

Was really happy with my order. Have since sent in a second and was pleased with that one as well. Great pricing and turn around time.

Ryan Silvestri

Great quality slabs, great prices and super fast turnaround time! Also, great communication: when I have questions, they respond every time. Forget PSA, choose Sigma!

Augustin Padilla

I'm very happy with my first submission. Cant wait to send some more cards.Thank You

Anonymous

Great service. Great communication. Cards look great.

totaljedi13

Fantastic job!!

kevin Snell

The cards were amazing the presentation looks so professional! Will use sigma for all grading

Eric Howard

Very pleased with the results. Plain labeling but still nice. Quick service doesn't hurt either. Glad to add you to my experiment. Just proving that there is great companies out there other than PSA. The little ducky doesn't hurt either !

Darren Newell

Excellent as always!

Nate Langley

Very fast turnaround time new slabs look great

Anthony Miller

Great company

Everett Grass

Although not regarded as “high grade” grading, I do appreciate an honest grade and professional look. I will continue to send my cards to you.

Kevin Nakamura

Awesome !

Ruben

Excellent job as always!! Keep up the great work!!

Nate Langley

Very fast turn around. Graded cards look amazing. I will be sending more to be graded.

Michael Hairston