2019-20 Donruss Optic Base Set Klay Thompson Purple #18
2020
$1.00est. value (ungraded)
Prices updated 2026-10-15
Based on recorded sold prices how we price cards
Klay Thompson price history
PSA 10 market value, one reading a day. One-day spikes that reverse the next day are left out.
Recent recorded prices
2 recorded price points for the 2019-20 Donruss Optic Base Set Klay Thompson Purple #18 from our sales and market data.
| Date | Source | Price |
|---|---|---|
| Oct 15, 2026 | Market value | $1.00 |
| Oct 14, 2026 | Market value | $1.00 |
Klay Thompson prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $1.00 | Buy on eBay ↗ |
| PSA 10 | $29.86 | Buy on eBay ↗ |
| BGS 10 | $39.00 | Buy on eBay ↗ |
| CGC 10 | $18.00 | Buy on eBay ↗ |
| SGC 10 | $18.00 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission2019-20 Donruss Optic Base Set Klay Thompson Purple #18 value & prices
The 2019-20 Donruss Optic Base Set Klay Thompson Purple #18 is a Basketball card (Purple parallel) released in 2020. Ungraded copies carry a market value of about $1.00.
An ungraded copy is worth around $1.00, a PSA 10 (Gem Mint) around $29.86 and a pristine BGS 10 around $39.00. That's roughly a 30× 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 ($1.00) and top-graded ($29.86) 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.