Which Dewgong do you have?

Same name, 31× the price: $1.02 to $31 raw. The difference is printed on the card — it is just not somewhere most people think to look.

Base Set 1st Edition · #25 A black 1st Edition stamp below the left of the illustration. These are also shadowless - the stamp is the thing to look for first. $27 14% gem Base Set Shadowless · #25 No stamp, and no drop shadow down the right edge of the illustration frame. The card looks flatter and slightly paler than the common printing. $6.61 12% gem Base Set Unlimited · #25 A drop shadow down the right edge of the illustration frame. This is the common printing - most Base Set cards people own are this one. $4.86 19% gem Base Set 2 · #36 A set symbol in the lower right of the illustration. The 1999 Base Set printings have no set symbol at all, so its presence settles it immediately. $2.21 25% gem Skyridge · #7 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. $31 52% gem Fire Red Leaf Green · #3 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. $23 11% gem Expansion Pack · #087 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. $11 35% gem Phantasmal Flames · #097 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. $4.94 51% gem Beat of the Frontier · #024 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. $3.66 60% gem Supreme Victors · #24 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. $3.62 <0.1% gem Dragon Frontiers · #15 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. $3.07 28% gem Legendary Collection · #40 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. $2.99 37% gem Inferno X · #084 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. $2.98 72% gem Double Blaze · #025 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. $2.11 100% gem Unbroken Bonds · #45 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. $1.70 no PSA data Phantasmal Flames · #022 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. $1.68 <0.1% gem Mysterious Treasures · #45 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. $1.67 <0.1% gem Fates Collide · #16 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. $1.62 no PSA data Lost Abyss · #021 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. $1.39 100% gem Pokemon Card 151 · #087 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. $1.39 40% gem Inferno X · #022 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. $1.39 no PSA data Nihil Zero · #019 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. $1.38 100% gem Evolutions · #29 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. $1.26 20% gem Lost Origin · #034 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. $1.26 33% gem Pokemon Card 151 Japanese · #087 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. $1.24 100% gem Perfect Order · #019 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. $1.02 <0.1% gem Secret of the Lakes · #028 Check the set symbol in the lower right of the illustration, and the copyright year along the bottom edge. Those two identify the print run on every card that has them. — no PSA data

Prices are raw market value. Click a printing for its full grading verdict — the gem rate, the fees and whether it beats selling raw.