Card grading is a luxury service that lives or dies on trust. We earn it twice: with a strict, public 4-point rubric, and with every single examination recorded on video.

Customers have to trust that their cards are graded fairly. But how can they, when the entire process is hidden? Is there a rubric, or do graders use their own discretion? Here at Excalibur we know trust is everything, and we’ve done two things to guarantee we’re providing the best grading services on the market.
A 4-point rubric viewable on this site. Customers know how their cards are graded and can submit only the ones they’re most confident about, judged to specific, measurable standards.
Read the standards →We record and upload every card examination to YouTube: a thorough look at the card, every imperfection, the final grade, and the slabbing process. Nothing happens off-camera.
Open the channel ↗Whether you’re submitting, verifying, or just curious, every part of the process is one click away.
Our 4-point rubric is available before you submit anything, so you can send the cards you’re most confident about.
View the standards →Every examination, recorded and uploaded. See the cards condition up close and understand our grading standards.
Watch examinations ↗Curious about a card we’ve graded? Make sure it’s legit. Every slab is recorded with a link to its examination video.
Search the database ↗Excalibur generates the overall grade by averaging the four sub-grades. Each is measured, not estimated.
How close the width of the four borders are to one another, measured in millimetres.
How many of the four corners are rounded to the perfect 3.175 mm radius.
How much damage, if any, appears on the front and back of the card.
How much damage, if any, appears on the outside edges of the card.
A single rubric. The same one, for every card, every time. The promises below are not aspirations. They are how we operate.
Limited slots per month. Quality and consistency over volume, and quick returns. Submit by form or jump in our Discord.