Plans

Cloyster #91, Normal, Japanese Topsun

Japanese edition

  • Card number: #91
  • Rarity: Common
  • Finish: Non-Holo

A PSA 9 Cloyster #91 Normal from Japanese Topsun has a TCGBerg fair value of $98 as of Nov 15, 2026. It rests on 14 recorded sales, the latest on Oct 29, 2026. PSA has graded 27 copies at PSA 9. Sales evidence is limited, so treat this value as a rough estimate.

TCGBerg fair valuePSA 9
As of Nov 15, 2026
$98down 3.5%30-day change

TCGBerg Algorithm (estimated from recorded sales).

14 sales · latest Oct 29, 2026

Fair value3 months
Last sale$180Oct 29, 202684.3% above fair
5-sale avg$78Feb 22Oct 29
Population · PSA 9
27
Market cap
$2.6K
Volatility
1.5%
YTD
↑ 144.3%
Sales evidence
Limited

TCGBerg fair value · PSA 9

$98

30D3.5%YTD144.3%
Sales evidenceLimited

Based on 14 recorded sales. Latest sale: Oct 29, 2026.

Market cap
$2.6K
fair value x population
Population
27
graded copies
Last sale
$180
+84.3% vs fair
5-sale avg
$78
recent sales
Grading

Price history

Open terminalPro

Weekly fair value for PSA 9.

What the evidence says

The latest recorded PSA 9 sale ($180 on Oct 29, 2026) sits 84.3% above the $98 fair value, too far off to read as this grade's price. The value rests on 14 recorded PSA 9 sales. The latest sale ran above the recent run: the last 4 PSA 9 sales averaged $78, within 19.8% of the value. Its confidence band runs from $86 to $109. A PSA 10 ($767) is worth 7.9 times a PSA 9 ($98). With limited sales evidence, read the gap and the band as rough guides.

TCGBerg fair value by grade

Value at each grade and ungraded condition. Log scale. Tap a row to switch the whole page.

Behind the scenes

What goes into this price, and how much we know.

Recent sales

9 tracked

Each sale against the grade's fair value on the day it sold.

  • $26
    Nov 6, 2026 · via eBay
    PSA7below fair value by 43.6%
  • $180
    Oct 29, 2026 · via eBay
    PSA9above fair value by 84.8%
  • $59
    Oct 9, 2026 · via eBay
    PSA7above fair value by 39.5%
  • $50
    Oct 3, 2026 · via eBay
    PSA8below fair value by 8.4%
  • $592
    Aug 10, 2026 · via Goldin
    PSA10below fair value by 10.6%

4 more sales with Pro

Up to 20 recent sales, each with its venue and its gap to fair value.

Includes a sale 21.0% below fair value

All grades matrix

Every grade we track for this printing.

  • PSA10$767
    1d 0.0%7d 0.9%30d 0.8%
    Pop
    10
    Mcap
    $7.7K
    Evidence
    Sparse
    Last
    $592
  • PSA9$98
    1d 0.0%7d 0.2%30d 3.5%
    Pop
    27
    Mcap
    $2.6K
    Evidence
    Limited
    Last
    $180
  • PSA8$56
    1d 0.0%7d 0.1%30d 0.3%
    Pop
    28
    Mcap
    $1.6K
    Evidence
    Limited
    Last
    $50
PSA10$76710$7.7Kup 0.9%down 0.8%up 15.8%Sparse$5923mo ago
PSA9$9827$2.6Kup 0.2%down 3.5%up 26.5%Limited$1802w ago
PSA8$5628$1.6Kup 0.1%up 0.3%up 6.1%Limited$501mo ago
PSA7$4616$7370.0%down 5.8%up 17.2%Limited$261w ago
PSA6$3613$4700.0%up 7.7%up 22.2%Sparse$201y ago
PSA5$306-down 0.3%down 2.3%up 21.1%Limited$1111mo ago

PSA population report

100 graded copies of Cloyster Normal across 6 grades.

PSA 10
10 · 10%
PSA 9
27 · 27%
PSA 8
28 · 28%
PSA 7
16 · 16%
PSA 6
13 · 13%
PSA 5
6 · 6.0%

PSA 9 makes up 27% of graded copies: 27 of 100. PSA 8 is the most common grade (28%).

Analysis

Cloyster - Blue Back at PSA 10 carries a TCGBerg fair value of $767 as of 2026-11-14. We track a TCGBerg fair value across 6 grades from Japanese Topsun, from PSA 5 up to PSA 10. A graded population of 10 copies sits behind the PSA 10 grade. The PSA 10 valuation rests on sparse sales evidence. Over the past 30 days, the PSA 10 TCGBerg fair value has fallen 0.8%.

PSA 9 - frequently asked

How much is a PSA 9 Cloyster - Blue Back from Japanese Topsun worth?
$98 as of 2026-11-14, the model-derived TCGBerg fair value for a PSA 9 Cloyster - Blue Back from Japanese Topsun. It rests on limited sales evidence. This estimate is not a guaranteed sale price.
What is the graded population of a PSA 9 Cloyster - Blue Back from Japanese Topsun?
27 copies have been graded at PSA 9, the recorded graded population, not the number of copies printed.
How has the PSA 9 Cloyster - Blue Back from Japanese Topsun price moved recently?
Its TCGBerg fair value has fallen 3.5% over the past 30 days.