How much is a PSA 10 Brock's Onix #21?

A PSA 10 Brock's Onix #21 from Pokemon Gym Heroes is currently priced at $238 based on completed sales tracked on PokeInvest.

Is grading Brock's Onix #21 worth it?

With a raw price of $10 and a PSA 10 selling for $238, grading Brock's Onix #21 has a potential gross margin of $228 before PSA fees ($15-50 depending on service tier). Use the PokeInvest PSA Calculator for a full ROI breakdown.

PSA 9 vs PSA 10 Brock's Onix #21: what's the price difference?

A PSA 10 Brock's Onix #21 sells for about $238 versus about $24 for a graded 9 (PSA, CGC and BGS 9 sales combined), so the 10 carries a 10.0x premium based on recent sales tracked on PokeInvest.

What's the raw price of Brock's Onix #21?

The raw (ungraded) price of Brock's Onix #21 from Pokemon Gym Heroes is currently $9, based on live market data tracked daily by PokeInvest.

Home / Gym Heroes / Brock's Onix #21

Brock's Onix #21

Pokemon Gym Heroes

Recent sales

1 recent sale

1 sale · latest 2 weeks ago

1 sales in the last 90 days · latest 2 weeks ago

$10.00 $10.00

$10.00 2 weeks ago Brock's Onix (21) · Near Mint · Unlimited · English

Too few recent sales to price from, so the figure above is an estimate.

Price by grade

0 from real sales · 4 est

Ungraded

Estimated market value

$10.00

Grade	PSA	CGC	BGS	SGC
10	$238.45 est · pop 22	$12.50 est · pop 4	$310.00 est	$143.00 est

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? 18% of 125 PSA-graded copies came back a 10. Raw $10.00 → PSA 10 $238.45 est. Expected value after a $25 fee: +$15.21 per copy.

Run the full math →

Sales volume: Top 20% of cards