How much is a PSA 10 Koga's Grimer [1st Edition] #78?

A PSA 10 Koga's Grimer [1st Edition] #78 from Pokemon Gym Challenge is currently priced at $100 based on completed sales tracked on PokeInvest.

Is grading Koga's Grimer [1st Edition] #78 worth it?

With a raw price of $5 and a PSA 10 selling for $100, grading Koga's Grimer [1st Edition] #78 has a potential gross margin of $95 before PSA fees ($15-50 depending on service tier). Use the PokeInvest PSA Calculator for a full ROI breakdown.

PSA 9 vs PSA 10 Koga's Grimer [1st Edition] #78: what's the price difference?

A PSA 10 Koga's Grimer [1st Edition] #78 sells for about $100 versus about $37 for a graded 9 (PSA, CGC and BGS 9 sales combined), so the 10 carries a 2.7x premium based on recent sales tracked on PokeInvest.

What's the raw price of Koga's Grimer [1st Edition] #78?

The raw (ungraded) price of Koga's Grimer [1st Edition] #78 from Pokemon Gym Challenge is currently $4, based on live market data tracked daily by PokeInvest.

Koga's Grimer [1st Edition] #78

Name: Koga's Grimer [1st Edition] #78
Brand: Pokémon

Pokemon Gym Challenge

Ungraded

$4.62

22 sales

Sales we held out are listed below, not counted here.

22 sold in 74 days · latest 2 weeks ago

$1.00 $14.21

2 sales well outside the rest ($1.00, $14.21). A median is barely moved by them, which is why it is the number shown.

Also held for this card: 5 PSA 8, 1 PSA 9. Priced separately, never mixed into this median.

Every sale is a completed listing. Click any line to open it.

Price by grade

4 from real sales · 2 est

Grade	PSA	CGC	BGS	SGC
10 Pristine	—		—	—
10		—	$159.00 est	$74.00 est
9.5	—		—	—
9			—	—
8.5	—		—	—
8		—	—	—
7		—	—	—
6.5	—		—	—
5		—	—	—

Medians of completed sales — click one to see them. Arrows compare the last 90 days with the period before. last sold means one or two sales, so we show the most recent one rather than a median. est is an estimate we have not confirmed. pop is how many exist at that grade. How we price

Grade it? 34% of 464 PSA-graded copies came back a 10. Raw $4.62 → PSA 10 $99.99. Expected value after a $25 fee: +$29.10 per copy.

Run the full math →

Sales volume: Top 40% of cards