Rhydon

Rhydon (19/106), the Rare from Emerald, has an estimated ungraded market price of about $1.75. Note: 16 other cards named Rhydon exist across the sets Riffle tracks, at very different values; check the collector number.

This page covers Rhydon (19/106), the Rare (about about $2) from Emerald.

The other versions: #H27/144 from Skyridge (Holo Rare, about $175–$230); #29/144 from Skyridge (Rare, about $17–$22); #35/110 from Legendary Collection (Rare, about $7–$9); #59/130 from Base Set 2 (Uncommon, about $2–$3); #46/101 from Hidden Legends (Uncommon, about $1–$2); #45/64 from Jungle (Uncommon, about $1–$2); #80/147 from Supreme Victors (Uncommon, about under $1); #60/130 from Diamond & Pearl (Uncommon, about under $1); #61/146 from XY (Rare, about under $1); #75/160 from Primal Clash (Uncommon, about under $1); #94/214 from Unbroken Bonds (Uncommon, about under $1); #112/165 from 151 (Uncommon, about under $1); #075/142 from Stellar Crown (Common, about under $1); #98/202 from Sword & Shield (Uncommon, about under $1); #090/196 from Lost Origin (Uncommon, about under $1); #66/147 from Burning Shadows (Uncommon, about under $1).

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

It's roughly a wash: with a 11% PSA 10 gem rate and current graded prices, grading a near-mint Rhydon (19/106) is estimated to come out within about $10 of selling it raw (est.); grade for protection or display, not profit.

Assumes ~$25/card bulk-rate grading (standard service costs more); ignores turnaround time, sub-9 grades, and shipping. A screen, not a promise.

Rhydon (19/106) is a Rare. PSA has graded 92 copies to date, so graded supply is measurable and growing.

Of the 92 copies PSA has graded, 11% earned a PSA 10. That's a low gem rate, so flawless copies are genuinely hard to come by. Grade-by-grade population and pop-over-time appear with Riffle premium.