Gyarados 123/123 — HeartGold & SoulSilver ACE Graded Prices

Price methodology

Sales are grouped by the exact effective idProduct, not by card number alone. The raw price uses the current Cardmarket trend for the ungraded card, falling back to Cardmarket low only when no positive trend exists, and is shown separately from historical ACE graded sale prices.

Only high-confidence automatic matches and trusted manual identities feed this aggregate page. Ambiguous listings remain ungrouped.