Permanent identity
Certification numbers are never reused—even when a slab is voided.
Permanent card certification
Every grade.Proven.
Scan a JASCO slab or enter its certification number to view the grade, detailed subgrades, status, and original card photos.
Permanent JG identity Front and back imaging
Certification lookup
Enter the number printed on the slab.
Example format: JG-000001
SIGNATURE SERIES
PERMANENT CERTIFICATION
JG-000001
GEM MINT
10
Four-part grading
Centering, corners, edges, and surface are recorded on every finalized grade.
Tamper-aware records
Finalized certification data is locked and every action is audited.