Shellos 28/114
Steam Siege
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Shellos #28 from Steam Siege currently trades at $0.70 raw, with PSA 10 copies reaching $41.00 — a 58.6x grade premium.
Current Prices (USD)
Ungraded
PSA 7
PSA 8
PSA 9
PSA 10
ACE 10
BGS 10 Black
CGC 10 Pristine
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Raw Price Trend
7d
+0.0%
30d
⚠ +105.9%
90d
+42.9%
180d
+159.3%
1y
-41.2%
2y
-29.3%
5y
-30.0%
⚠ Large moves shown in amber — verify against recent sold listings before drawing conclusions.
Quick price facts
Shellos 28/114 from Steam Siege has a current raw market value of $0.70.
- Current raw value
- $0.70
- PSA 9 value
- $13.00
- PSA 10 value
- $41.00
- Raw value 30d
- +105.9%
- PSA 10 premium vs raw
- 58.6× raw
Collector Intel
58.6x
Raw → PSA 10
High-risk grade
18.6x
Raw → PSA 9
Grade multiplier
Steady
Price Stability
0.0% 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 59x the raw price. The expected value accounts for the realistic probability.
$1
Buy Raw
~$25
Grading Fee
PSA Standard
$41
PSA 10 Value
+$15
Best Case (PSA 10)
if you pull a 10
Grade Multiples vs Raw
PSA 9$1318.6x raw
PSA 10$4158.6x raw