2017-18 O-Pee-Chee Platinum Base Set Sean Monahan Seismic Gold #21
2017
See all Sean Monahan cards & valuesUncommon
$7.43est. value (ungraded)
Prices updated 2026-10-26
Based on recorded sold prices how we price cards
Card number
#21
Year
2017
Parallel / variant
Seismic Gold
Sean Monahan price history
$7.43▲ 0.0%
Oct 25 · $7.43 low$7.43 high · Oct 26
Ungraded market value, one reading a day. One-day spikes that reverse the next day are left out.
Price by month
Average price of the 2017-18 O-Pee-Chee Platinum Base Set Sean Monahan Seismic Gold #21 each month, from 1 recorded price reading. Prices are re-checked regularly; a month's average counts each day from that month's first reading at the price that held that day.
Recorded high
$7.43
Recorded low
$7.43
| Month | Source | Average | Range |
|---|---|---|---|
| Oct 2026 | Market value | $7.43 | — |
Sean Monahan prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $7.43 | Buy on eBay ↗ |
Other versions of this Sean Monahan card
8 versions, each priced on its own. Most valuable first.
Live on eBay
Affiliate — we may earn a commission2017-18 O-Pee-Chee Platinum Base Set Sean Monahan Seismic Gold #21 value & prices
The 2017-18 O-Pee-Chee Platinum Base Set Sean Monahan Seismic Gold #21 is a Hockey card (Seismic Gold parallel) released in 2017. Ungraded copies carry a market value of about $7.43.
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