When we don't have real graded sales for a card, we estimate the graded price as raw market × multiplier. Multipliers we use:
- PSA 10: 8× raw
- PSA 9: 3.5× raw
- PSA 8: 1.8× raw
- BGS 10: 15× raw
- BGS 9.5: 5× raw
- CGC 10: 12× raw
- CGC 9.5: 4.5× raw
- TAG 10: 10× raw
- TAG 9.5: 4× raw
These are conservative averages. Vintage cards (Base / Jungle / Fossil) tend to multiply higher; modern cards tend to multiply lower. Real sold data always overrides estimates the moment we have enough samples.