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Seaking [Reverse Holo] #21 Pokémon card from Ruby & Sapphire

Seaking [Reverse Holo] 21/109

Ruby & Sapphire

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Seaking [Reverse Holo] #21 from Ruby & Sapphire currently trades at $8.60 raw, with PSA 10 copies reaching $143.69 — a 16.7x grade premium. Price is down 14.2% in the last 30 days, though the 90-day trend tells a different story at +8.2% — worth watching for a clearer direction.
Current Prices (USD)
Ungraded
$8.60
PSA 7
$16.25
PSA 8
$17.72
PSA 9
$65.99
PSA 10
$143.69
ACE 10
—
BGS 10 Black
$935.00
CGC 10 Pristine
$122.00
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Raw Price Trend
7d
-4.3%
30d
-14.2%
90d
+8.2%
180d
+32.1%
1y
+101.9%
2y
+122.2%
5y
+115.5%

Quick price facts

Seaking [Reverse Holo] 21/109 from Ruby & Sapphire has a current raw market value of $8.60.

Current raw value
$8.60
PSA 9 value
$65.99
PSA 10 value
$144
Raw value 7d
-4.3%
Raw value 30d
-14.2%
PSA 10 premium vs raw
16.7× raw
View all cards from Ruby & Sapphire →
Collector Intel
16.7x
Raw → PSA 10
High-risk grade
7.7x
Raw → PSA 9
Grade multiplier
-14.2%
30d Price Move
Falling
Steady
Price Stability
4.3% swing this week

Calculated from price history, PSA population data, and market trends. Not financial advice.

Grading Calculator

Based on PSA Standard tier (~$25 USD). Assumes a perfect PSA 10 result — actual outcome depends on card condition.

⚠️ High-variance grade. PSA 10 is 17x the raw price. The expected value accounts for the realistic probability.
$9
Buy Raw
~$25
Grading Fee
PSA Standard
$144
PSA 10 Value
+$110
Best Case (PSA 10)
if you pull a 10
Grade Multiples vs Raw
PSA 9$667.7x raw
PSA 10$14416.7x raw

Frequently asked questions

How much is Seaking [Reverse Holo] #21 from Ruby & Sapphire worth?+
Seaking [Reverse Holo] #21 from Ruby & Sapphire is currently worth Raw: $8.60, PSA 9: $65.99, PSA 10: $144 based on recent sold listings. Prices update daily from real eBay sales.
Is Seaking [Reverse Holo] #21 worth grading?+
The PSA 10 price of $144 is 16.7× the raw price of $8.60. After a ~$25 grading fee, a PSA 10 result would net approximately $135 — assuming the card grades a 10.
Where do PokePrices Seaking [Reverse Holo] #21 prices come from?+
Prices are tracked nightly from real sold listings on PriceCharting (raw, PSA 9 and PSA 10). PSA population data is sourced from PSA's public reports. We do not use asking prices — only confirmed sales.

Recent verified sales

Find this card on eBay →Affiliate · we may earn commission
  • 26 Jul 2026Raw
    ebaycompleted-auctions-usedunknown
    $5.00
  • 26 Jul 2026Raw
    ebaycompleted-auctions-usedlightly played
    $10.64
  • 21 Jul 2026Raw
    ebaycompleted-auctions-usedpoor
    $7.99
  • 19 Jul 2026Raw
    ebaycompleted-auctions-usedunknown
    $4.46
  • 19 Jul 2026Raw
    ebaycompleted-auctions-usedunknown
    $11.00