2018 Finest Base Set Clayton Kershaw Green Refractor #40
2018
See all Clayton Kershaw cards & values2018 seasonLos Angeles DodgersClayton Kershaw career & card values
Common
$4.43est. value (ungraded)
Prices updated 2026-10-23
Based on recorded sold prices how we price cards
Card number
#40
Year
2018
Parallel / variant
Green Refractor
Clayton Kershaw price history
$42.75▲ 0.0%
Oct 22 · $42.75 low$42.75 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 2018 Finest Base Set Clayton Kershaw Green Refractor #40 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
$4.43
Recorded low
$4.43
| Month | Source | Average | Range |
|---|---|---|---|
| Oct 2026 | Market value | $4.43 | — |
Clayton Kershaw prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $4.43 | Buy on eBay ↗ |
| PSA 9 | $22.00 | Buy on eBay ↗ |
| Grade 9.5 | $24.00 | Buy on eBay ↗ |
| PSA 10 | $42.75 | Buy on eBay ↗ |
| BGS 10 | $56.00 | Buy on eBay ↗ |
| CGC 10 | $17.00 | Buy on eBay ↗ |
| SGC 10 | $26.00 | Buy on eBay ↗ |
Other versions of this Clayton Kershaw card
6 versions, each priced on its own. Most valuable first.
Live on eBay
Affiliate — we may earn a commission2018 Finest Base Set Clayton Kershaw Green Refractor #40 value & prices
The 2018 Finest Base Set Clayton Kershaw Green Refractor #40 is a Baseball card (Green Refractor parallel) released in 2018. Ungraded copies carry a market value of about $4.43.
An ungraded copy is worth around $4.43, a PSA 9 around $22.00, a PSA 10 (Gem Mint) around $42.75 and a pristine BGS 10 around $56.00. That's roughly a 9.7× 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 ($4.43) and top-graded ($42.75) 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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Clayton Kershaw2018 Finest Base Set2018Baseball cardsGreen RefractorPSA 10BGS 10card valueprice guide