2020-21 Donruss Optic Signature Series Greg Ostertag Purple #SS-GOS
2020
See all Greg Ostertag cards & valuesCommon
$2.19est. value (ungraded)
Prices updated 2026-10-23
Based on recorded sold prices how we price cards
Card number
#SS-GOS
Year
2020
Parallel / variant
Purple
Greg Ostertag price history
$32.78▲ 0.0%
Oct 22 · $32.78 low$32.78 high · Oct 23
PSA 10 market value, one reading a day. One-day spikes that reverse the next day are left out.
Price by month
Average price of the 2020-21 Donruss Optic Signature Series Greg Ostertag Purple #SS-GOS 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
$2.19
Recorded low
$2.19
| Month | Source | Average | Range |
|---|---|---|---|
| Oct 2026 | Market value | $2.19 | — |
Greg Ostertag prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $2.19 | Buy on eBay ↗ |
| PSA 8 | $6.60 | Buy on eBay ↗ |
| PSA 9 | $12.18 | Buy on eBay ↗ |
| Grade 9.5 | $23.41 | Buy on eBay ↗ |
| PSA 10 | $32.78 | Buy on eBay ↗ |
| BGS 10 | $43.00 | Buy on eBay ↗ |
| CGC 10 | $13.00 | Buy on eBay ↗ |
| SGC 10 | $20.00 | Buy on eBay ↗ |
Other versions of this Greg Ostertag card
5 versions, each priced on its own. Most valuable first.
Live on eBay
Affiliate — we may earn a commission2020-21 Donruss Optic Signature Series Greg Ostertag Purple #SS-GOS value & prices
The 2020-21 Donruss Optic Signature Series Greg Ostertag Purple #SS-GOS is a Basketball card (Purple parallel) released in 2020. Ungraded copies carry a market value of about $2.19.
An ungraded copy is worth around $2.19, a PSA 9 around $12.18, a PSA 10 (Gem Mint) around $32.78 and a pristine BGS 10 around $43.00. That's roughly a 15× premium for a gem-mint copy over raw — one of the clearest signals that condition-sensitive buyers dominate this card's market.
Is it worth grading?
The spread between raw ($2.19) and top-graded ($32.78) copies is fairly tight, so grading this card only makes financial sense for truly flawless copies — or for collectors who simply prefer slabbed cards for protection and display.
More from 2020-21 Donruss Optic Signature Series
Immanuel Quickley
#SS-IMQ$15.50
Immanuel Quickley
#SS-IMQ$5.88
Immanuel Quickley
#SS-IMQ$9.63
Immanuel Quickley
#SS-IMQ$6.99
Immanuel Quickley
#SS-IMQ$5.53
Isaac Bonga
#SS-ASB$4.99
Other Greg Ostertag cards
Greg Ostertag
#HS-GRG$19.99
Greg Ostertag
#188$17.01
Greg Ostertag
#208$13.95
Greg Ostertag
#194$11.67
Greg Ostertag
#187$7.73
Greg Ostertag
#PM-GOS$5.97
Cards worth about the same as the Greg Ostertag
Explore Greg Ostertag card values
Greg Ostertag2020-21 Donruss Optic Signature Series2020Basketball cardsPurplePSA 10BGS 10card valueprice guide