Dark Gyarados Prerelease

Dark Gyarados Prerelease 8 from WOTC Promo has a market value of £28 for an ungraded card in normal collector condition. It is based on completed sales, not asking prices. Graded as PSA 10 it is valued at £427. Condition, variant and language decide which price applies to your copy.

PSA 10: £427, PSA 9: £107. A graded card is a different item from the same card in a binder, so never compare a PSA 10 price with an unprotected card. The figures are based on sales of graded copies.

Sell on the marketplace collectors use most, which is where we read final prices. Set the price from completed sales, not asking prices, and put the name, number, set, variant and condition in the listing. The guide to selling Pokémon cards covers marketplaces, shops and bulk step by step.