GCC LogoGlobal CollectiblesConsulting

Global Card Certification

Sports cards and memorabilia authentication with trusted, verified, market-ready certification

Grade Like a Pro. Sell Like It's Already a 10.

GCC Black Gem Grade Sticker

The GCC Black Gem Grade™ identifies cards that project at GEM MINT level.

Why Black Gem?

Market with Confidence — Third-party verified condition buyers trust
Increase Sale Prices — Position raw cards at premium levels
Transparent Pricing — Non-graded cards below $25 market value are charged $1.50 and returned ungraded

What Makes It Different

The Black Gem is not a guess—it's a professional evaluation backed by experience.

Each sticker is:

Holographic & tamper-evident
Serialized & verifiable on GCCgrading.com
Applied only to true GEM MINT-caliber cards

Black Gem Pricing

$10
per card
Qualifying Bulk Submissions
40+ cards
$15
per card
Under 40 Cards
If selected

How It Works

1

Submit your cards

2

We screen for Black Gem eligibility

3

Only qualifying cards receive the sticker

4

Sell confidently

Stop Guessing. Start Knowing.

Submit Your Cards Today
GCC Black Gem Grade - Professional Sports Card Grading
GOLD STICKER
Michael Jordan SkyBox Card with GCC Gold Sticker

Featured: Michael Jordan SkyBox Card

This card showcases our Gold Sticker certification for high-grade sports cards. Our authentication process ensures authenticity and enhances collector confidence.

Authenticated genuine by industry experts
Professional Gold Sticker certification
Enhanced collector confidence and value
Submit Your Sports Cards

GCC - Global Card Certification

Sports Card Sticker

Add Value to Your Sports Cards Instantly!

Our Sticker System

Three distinct certification levels based on grade and rarity

Gold Sticker

Reserved for cards grading 7 and above, representing exceptional quality and condition.

Grades 7, 8, 9, and 10
Premium certification
Maximum market value
Best for:
High-grade cards, investment pieces

Green Sticker

For cards grading 4, 5, and 6, offering reliable certification for mid-grade collectibles.

Grades 4, 5, and 6
Standard certification
Enhanced marketability
Best for:
Mid-grade cards, bulk submissions

Silver Sticker

For cards grading 1, 2, and 3, providing trusted certification for lower-grade collectibles.

Grades 1, 2 and 3
Verified authentication
Historical significance
Unique authentication
Best for:
Rare, unique, or vintage cards

Flexible Pricing Options

Choose the service level that fits your needs and budget

Bulk Pricing

BULK 1: Submit 40 Cards$7/card chosen for grading
BULK 2: Submit 60 Cards$6/card chosen for grading
BULK 3: Submit 100 Cards$5/card chosen for grading

Perfect for large collections and dealers

Regular Pricing

LEVEL 4: 10 Card Minimum$12/card
LEVEL 5: No Minimum$24/card

Flexible options for any collection size

Sticker Selection & Pricing

Non-graded cards will be charged $1.50 and returned ungraded when below a market value of $25. Bulk tiers will be charged $75 for orders having less than a 15% sticker success rate.

Our Three Pillars

The foundation of our card certification philosophy

Trusted

Built on decades of experience and industry relationships. Our reputation speaks for itself in the collectibles community.

Verified

Every card undergoes rigorous authentication using advanced techniques and industry-standard verification processes.

Market-Ready

Our certification enhances marketability and buyer confidence, making your cards easier to sell and more valuable.

Ready to Certify Your Sports Cards?

Submit your sports cards for professional authentication and sticker certification

Submit Sports Cards Now