Seaking #21, Reverse Holo, Prismatic Evolutions
- Card number: #21/131
- ·Rarity: Uncommon
A CGC Gem Mint 10 Seaking #21 Reverse Holo from Prismatic Evolutions has a TCGBerg fair value of $16 as of Nov 14, 2026. CGC has graded 8 copies at CGC Gem Mint 10.
TCGBerg Algorithm (estimated from recorded sales).
- Population · CGC Gem Mint 10
- 8
- Market cap
- $130
- Volatility
- -
- YTD
- -
- Sales evidence
- Moderate
TCGBerg fair value · CGC Gem Mint 10
$16
Price history
Weekly fair value over time, plus a confidence band around it: how precisely we can pin the value, which tightens as more sales confirm it. Dots mark individual sales, snapped to their week: red when above fair value (a premium), green when below (a deal), hollow when flagged as an outlier. Switch the active grade with the selector above.Weekly fair value for CGC Gem Mint 10. Shaded area is the confidence band: how precisely we can pin the value; it tightens as more sales confirm it. Dots are individual sales. Confidence band: how precisely we can pin the fair value. It widens when sales scatter and narrows as more sales back the value up. The dots show the actual sale prices.
What the evidence says
The value weighs 3 CGC Gem Mint 10 sales from the past year, not the latest one alone. Its confidence band runs from $14 to $19.
TCGBerg fair value by grade
Side-by-side comparison of value across every grade and ungraded condition we track for this printing. The bar chart uses a log scale so raw and gem-mint fit on one axis. Solid bars are the TCGBerg fair value, modelled from recorded sales. Hatched bars are the latest market price instead, shown for ungraded conditions that trade too rarely for us to price one honestly.Value at each grade and ungraded condition. Log scale. Tap a row to switch the whole page.
- Raw NM$0.25Ungraded · market price
- Raw LP$0.19Ungraded · market price
Behind the scenes
How the published fair value for this grade was produced: the sales it rests on, how they were put together, and every recorded change afterwards. It describes one saved calculation, not a live recomputation.What goes into this price, and how much we know.
All grades matrix
Every grade we track for this printing. Click any column header to sort; the rightmost column jumps you to listings for that grade.
- CGC Gem Mint 10$161d -7d -30d -
- Pop
- 8
- Mcap
- $130
- Evidence
- Moderate
- Last
- -
- CGC9.5$7.201d -7d -30d -
- Pop
- 1
- Mcap
- $7
- Evidence
- Sparse
- Last
- $7.20
- Raw$0.251d ↓3.9%7d ·0.0%30d ↑8.7%
- Pop
- -
- Mcap
- -
- Evidence
- -
- Last
- -
| Listings | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| CGC Gem Mint 10 | $16 | 8 | $130 | - | - | - | - | Moderate | - | |
| CGC9.5 | $7.20 | 1 | $7 | - | - | - | - | Sparse | $7.201y ago | |
| Raw | $0.25 | - | - | ↓down 3.9% | 0.0% | ↑up 8.7% | ↑up 4.2% | - | - |
Graded population report
How Seaking's graded copies are spread across grades. Each bar is the number of copies graded at that grade; the percentage is that grade's share of the total graded population. These are recorded graded copies, not the total print run. A smaller population alone does not establish a price premium.26 graded copies of Seaking Reverse Holo across 9 grades. The selected grade is highlighted.
CGC Gem Mint 10 makes up 31% of graded copies: 8 of 26. It’s the most common grade for this card.
Analysis
Seaking - Reverse Holo at CGC Gem Mint 10 carries a TCGBerg fair value of $16 as of 2026-11-14. We track a TCGBerg fair value across 2 grades from Prismatic Evolutions, from CGC 9.5 up to CGC Gem Mint 10. A graded population of 8 copies sits behind the CGC Gem Mint 10 grade. The CGC Gem Mint 10 valuation rests on moderate sales evidence.