2025-26 Finest Base Set Klay Thompson Sky Blue Refractor #289
2026
See all Klay Thompson cards & values2025 seasonDallas MavericksKlay Thompson career & card values
Common
$4.62est. value (ungraded)
Prices updated 2026-10-25
Based on recorded sold prices how we price cards
Card number
#289
Year
2026
Parallel / variant
Sky Blue Refractor
Klay Thompson price history
$49.73▲ 0.0%
Oct 24 · $49.73 low$49.73 high · Oct 25
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 2025-26 Finest Base Set Klay Thompson Sky Blue Refractor #289 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
$4.62
Recorded low
$4.62
| Month | Source | Average | Range |
|---|---|---|---|
| Oct 2026 | Market value | $4.62 | — |
Klay Thompson prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $4.62 | Buy on eBay ↗ |
| PSA 8 | $9.12 | Buy on eBay ↗ |
| PSA 9 | $17.07 | Buy on eBay ↗ |
| Grade 9.5 | $33.31 | Buy on eBay ↗ |
| PSA 10 | $49.73 | Buy on eBay ↗ |
| BGS 10 | $65.00 | Buy on eBay ↗ |
| CGC 10 | $20.00 | Buy on eBay ↗ |
| SGC 10 | $30.00 | Buy on eBay ↗ |
Other versions of this Klay Thompson card
9 versions, each priced on its own. Most valuable first.
Purple Geometric Refractor
$2.26
Not enough history yet
Raw $2.26PSA 9 $13.46PSA 10 $39.68Checked 2026-10-25
Live on eBay
Affiliate — we may earn a commission2025-26 Finest Base Set Klay Thompson Sky Blue Refractor #289 value & prices
The 2025-26 Finest Base Set Klay Thompson Sky Blue Refractor #289 is a Basketball card (Sky Blue Refractor parallel) released in 2026. Ungraded copies carry a market value of about $4.62.
An ungraded copy is worth around $4.62, a PSA 9 around $17.07, a PSA 10 (Gem Mint) around $49.73 and a pristine BGS 10 around $65.00. That's roughly a 11× 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 ($4.62) and top-graded ($49.73) 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.
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Klay Thompson2025-26 Finest Base Set2026Basketball cardsSky Blue RefractorPSA 10BGS 10card valueprice guide