Grumpig

Grumpig (20/100), the Rare from Crystal Guardians, has an estimated ungraded market price of about $0.90. Note: 14 other cards named Grumpig exist across the sets Riffle tracks, at very different values; check the collector number.

This page covers Grumpig (20/100), the Rare (about $0.70–$1) from Crystal Guardians.

The other versions: #6/97 from Dragon (Holo Rare, about $16–$21); #30/106 from Emerald (Uncommon, about $1–$2); #29/106 from Emerald (Uncommon, about about $1); #23/102 from Triumphant (Rare, about under $1); #56/146 from Legends Awakened (Uncommon, about under $1); #60/149 from Boundaries Crossed (Rare, about under $1); #32/107 from Deoxys (Uncommon, about under $1); #50/146 from XY (Rare, about under $1); #31/124 from Fates Collide (Rare, about under $1); #60/168 from Celestial Storm (Rare, about under $1); #56/163 from Battle Styles (Uncommon, about under $1); #42/111 from Crimson Invasion (Uncommon, about under $1); #091/197 from Obsidian Flames (Uncommon, about under $1); #063/132 from Mega Evolution (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 9% PSA 10 gem rate and current graded prices, grading a near-mint Grumpig (20/100) 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.

Grumpig (20/100) is a Rare. PSA has graded 137 copies to date, so graded supply is measurable and growing.

Of the 137 copies PSA has graded, 9% 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.