Which Rhydon do you have?

Same name, 1800× the price: $0.01 to $18 raw. The difference is printed on the card — it is just not somewhere most people think to look.

Base Set 2 · #59 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. $1.82 17% gem Skyridge · #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. $18 56% gem XY Promos · #113 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. $9.50 82% gem Jungle 1st Edition · #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. $7.72 18% gem Legendary Collection · #35 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. $3.64 38% gem Pokémon Jungle · #112 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. $2.77 24% gem XY Base · #61 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. $2.52 33% gem Beat of the Frontier · #057 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. $2.38 40% gem Battle Region · #038 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. $2.15 no PSA data Jungle · #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. $2.11 16% gem Unbroken Bonds · #94 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. $2.02 <0.1% gem Hidden Legends · #46 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. $1.99 31% gem Primal Clash · #75 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. $1.99 <0.1% gem Light Consuming Darkness · #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. $1.98 no PSA data Stellar Crown · #075 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. $1.94 <0.1% gem Emerald · #19 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. $1.73 33% gem Supreme Victors · #80 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. $1.63 25% gem Double Blaze · #049 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. $1.50 75% gem Diamond & Pearl · #60 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. $1.31 <0.1% gem Pokemon Card 151 · #112 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. $1.29 67% gem Shield · #029 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. $1.00 no PSA data Sword & Shield · #098 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. $1.00 <0.1% gem Lost Origin · #090 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. $0.99 100% gem Pokemon Card 151 Japanese · #112 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. $0.71 100% gem Burning Shadows · #66 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. $0.70 25% gem Stellar Miracle · #051 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. $0.01 no PSA data Space-Time Creation · #070 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 Trainer Battle Decks · #014 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.