How much is a PSA 10 Porygon #137?

A PSA 10 Porygon #137 from Pokemon Japanese Expansion Pack is currently priced at $554 based on completed sales tracked on PokeInvest.

Is grading Porygon #137 worth it?

With a raw price of $3 and a PSA 10 selling for $554, grading Porygon #137 has a potential gross margin of $550 before PSA fees (from $59.99 a card, more for higher declared values). Use the PokeInvest PSA Calculator for a full ROI breakdown.

PSA 9 vs PSA 10 Porygon #137: what's the price difference?

A PSA 10 Porygon #137 sells for about $554 versus about $62 for a graded 9 (PSA, CGC and BGS 9 sales combined), so the 10 carries a 8.9x premium based on recent sales tracked on PokeInvest.

What's the raw price of Porygon #137?

The raw (ungraded) price of Porygon #137 from Pokemon Japanese Expansion Pack is currently $3, based on live market data tracked daily by PokeInvest.

Porygon #137

Name: Porygon #137
Brand: Pokémon

Pokemon Japanese Expansion Pack

Ungraded

$3.16

26 sales

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

26 sold in 85 days · latest 4 days ago

$0.99 $15.50

$15.50 2 months ago 1996 Pokemon PORYGON #137 Expansion Pack Unlimited Uncommon Japanese #137 $3.99 2 months ago VINTAGE PORYGON NO. 137 UNCOMMON BASE SET POKEMON CARD JAPANESE N/M F/S Japanese #137 $2.83 2 months ago 1996 Moderately Played Pokemon Porygon No. 137 Base Set Japanese Japanese #No. 137 $6.00 2 months ago Pokemon Japanese Basic Base Set Uncommon #137 - Porygon | LP $4.99 2 months ago Pokemon Japanese Base Set Porygon No. 137 Uncommon Japanese #137 $3.75 2 months ago Porygon No.137 Base Set vintage Old Back Japanese Pokemon Card From Japan Japanese #137

2 sales well outside the rest ($9.24, $15.50). A median is barely moved by them, which is why it is the number shown.

Also held for this card: 1 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

3 from real sales · 3 est

Grade	PSA	CGC	BGS	SGC
10 Pristine	—		—	—
10	$553.65 est · pop 83		$720.00 est	$332.00 est
9			—	—
8		—	—	—
4		—	—	—
3.5	—		—	—

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? 25% of 330 PSA-graded copies came back a 10. Raw $3.16 → PSA 10 $553.65 est. Expected value after a $60 fee: +$122.88 per copy.

Run the full math → Is yours a 10? Pre-grade it, $3

Sales volume: Top 40% of cards