Jolteon

Jolteon (70/236), the Uncommon from Cosmic Eclipse, has an estimated ungraded market price of about $3–$4. Note: 19 other cards named Jolteon exist across the sets Riffle tracks, at very different values; check the collector number.

This page covers Jolteon (70/236), the Uncommon (about $3–$4) from Cosmic Eclipse.

The other versions: #4/64 from Jungle (Rare, about $200–$270); #14/110 from Legendary Collection (Rare, about $195–$260); #8/115 from Unseen Forces (Rare, about $155–$210); #6/100 from Sandstorm (Rare, about $145–$190); #13/144 from Skyridge (Rare, about $50–$65); #20/64 from Jungle (Rare, about $48–$65); #34/116 from Plasma Freeze (Uncommon, about $41–$55); #26/111 from Rising Rivals (Rare, about $33–$43); #28/90 from Undaunted (Uncommon, about $29–$38); #23/100 from Majestic Dawn (Rare, about $27–$35); #45/95 from Call of Legends (Uncommon, about $27–$35); #37/108 from Dark Explorers (Uncommon, about $19–$25); #TG04/30 from Brilliant Stars Trainer Gallery (Rare, about $16–$22); #H12/144 from Skyridge (Rare, about $11–$15); #26/98 from Ancient Origins (Rare, about $4–$5); #135/165 from 151 (Rare, about $2–$3); #23/68 from Hidden Fates (Rare, about $0.80–$1); #47/185 from Vivid Voltage (Rare, about $0.70–$1); #029/131 from Prismatic Evolutions (Rare, about under $1).

The collector number printed at the bottom of the card is the reliable way to tell them apart.