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10
Pokémon TCG
GRAIL
9
One Piece
MINT
10
Pokémon TCG
GRAIL
8
Topps TCG
NM-MT
9
One Piece
MINT
10
Pokémon TCG
GRAIL
UK Premium Card Authentication

The Grail

Standard.

Ultra-strict. Microscopic. Uncompromising. Every card examined under extreme digital magnification. Every grade earned, never given.

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🔬
our high-tech digital microscope equipment Microscope Analysis
Ultra-Strict 1–10 Whole-Number Scale
🇬🇧
London Based · EC2A 4NE
Fast UK Turnaround
🏆
Pokémon · One Piece · Topps TCG
🔐
Certificate Verification System
No Half Grades. Every grade earned.
🔬
our high-tech digital microscope equipment Microscope Analysis
Ultra-Strict 1–10 Whole-Number Scale
🇬🇧
London Based · EC2A 4NE
Fast UK Turnaround
🏆
Pokémon · One Piece · Topps TCG
🔐
Certificate Verification System
No Half Grades. Every grade earned.
The Process

Three steps to certified
excellence.

01
Submit

Select your service tier, package your cards securely, and ship to our London address. We handle everything from there.

02
Grade

Every card examined under the our high-tech digital microscope equipment. Centering measured. All 8 corners and 8 edges individually assessed. Defects documented.

03
Certified

Your official HGG certificate issued with unique Cert ID. Cards returned safely. Grade verifiable online. Your collection protected.

Corner Analysis
Edge Integrity
Print Quality
Surface Scan
Microscopic Precision

Examined under
extreme magnification.

  • our high-tech digital microscope equipment 4K digital microscope — every card analysed in full detail
  • All 8 corners assessed individually — front and back
  • All 8 edges assessed individually — front and back
  • Surface inspection for print lines, micro-scratches, roller indentations
  • Centering measured mathematically from standard camera images
  • Zero defect tolerance for our Grade 10 GRAIL designation
Grading Services

Choose your service.

Standard
HG Standard
£15 / card

The benchmark grade. Full microscopic inspection, centering analysis, official HGG certificate.

  • Full our high-tech digital microscope equipment analysis
  • Official HGG certificate
  • Centering measured
  • Online verification
Value Plus
HG Value Plus
£18 / card

Priority processing. Ideal for mid-value cards where speed matters without compromising precision.

  • Priority queue
  • Full microscope analysis
  • Official HGG certificate
  • Online verification
Popular
Value Max
HG Value Max
£30 / card

Maximum scrutiny for your most valuable cards. Full high-tech digital microscope analysis with enhanced documentation.

  • Enhanced microscope report
  • Priority grading
  • Full defect documentation
  • Official HGG certificate
Bulk
HG Bulk
£280 / 20 cards

Best value for collectors and traders grading at scale. 20 cards at £14 per card.

  • 20 cards included
  • £14 per card
  • Full analysis each card
  • All certificates included
The HGG Scale

Ultra-strict. No half grades.
Every tier earned.

10
GRAIL
Zero defects. 55/45 centering.
9
MINT
Max 1 microscopic flaw. 60/40.
8
NM-MT
Minor flaws. 70/30 centering.
7
NEAR MINT
Light wear. 75/25 centering.
6–1
EX–POOR
Visible wear to heavy damage.
View Full Scale →

"Other graders process thousands of cards a day. We grade yours like it's the only one."

Holy Grail Grading · London, UK

Your collection
deserves the Grail
standard.

Submit your cards today. Every card examined under extreme digital magnification. Every grade earned, never given.

Submit Your Cards Now → Get in Touch