Kira Yamato (C+).

What moves the price of this card

The Kira Yamato (C+) on this page is the Holofoil printing from Starter Deck 04: SEED Strike, and it trades at $27.49 in near mint condition. The same name is on 8 other printings: Gundam Promotional Cards ST04-010 at $351.87, Freedom Ascension ST04-010 at $124.93, Freedom Ascension GD05-081 at $42.28, Gundam Promotional Cards ST04-010 at $5.51, Freedom Ascension GD05-081 at $1.42, Edition Beta ST04-010 at $0.87, Starter Deck 04: SEED Strike ST04-010 at $0.52, Starter Deck 09: Destiny Ignition ST04-010 at $0.23, so read the set, the number and the rarity together before comparing prices.

Condition does most of the work below the surface. A copy with soft corners or a print line off centre trades well under the market price shown here, and a copy clean enough to grade trades well above it. Before you value your own copy, look at the corners under a light and check the centring on the back, where most cards give themselves away.