TAG Grading Services
Technical Authentication & Grading: Professional Sports Card & TCG Grading Standards
Market Analysis: TAG
Respected Alternative: While not yet at the 'Blue Chip' level of the Big 3, TAG has established a strong reputation for accuracy. These slabs are generally liquid on eBay, though they may trade at a slight discount compared to PSA 10 equivalents.
Technology & Protocol
Computer Vision Verification: TAG utilizes advanced imaging sensors to measure centering and surface flaws down to the micron. This eliminates human subjectivity, ensuring that a '10' today is the same as a '10' next year. The slab likely features digital integration (NFC/QR) for instant pop-report access. Using a 1–10 scale, they evaluate cards based on the four core subgrades. Operating in the heart of the hobby, TAG competes directly with industry titans. To succeed here, they focus on aggressive turnaround times and competitive bulk pricing.
