2020 Topps Finest Flashbacks J.D. Martinez Black Refractor #21
2020
See all J.D. Martinez cards & values2020 seasonBoston Red SoxJ.D. Martinez career & card values
$10.27est. value (ungraded)
Prices updated 2026-10-23
Based on recorded sold prices how we price cards
Price by month
Average price of the 2020 Topps Finest Flashbacks J.D. Martinez Black Refractor #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.
| Month | Source | Average | Range |
|---|---|---|---|
| Oct 2026 | Market value | $10.27 | — |
J.D. Martinez prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $10.27 | Buy on eBay ↗ |
| PSA 10 | $47.03 | Buy on eBay ↗ |
| BGS 10 | $61.00 | Buy on eBay ↗ |
| CGC 10 | $19.00 | Buy on eBay ↗ |
| SGC 10 | $28.00 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission2020 Topps Finest Flashbacks J.D. Martinez Black Refractor #21 value & prices
The 2020 Topps Finest Flashbacks J.D. Martinez Black Refractor #21 is a Baseball card (Black Refractor parallel) released in 2020. Ungraded copies carry a market value of about $10.27.
An ungraded copy is worth around $10.27, a PSA 10 (Gem Mint) around $47.03 and a pristine BGS 10 around $61.00. That's roughly a 4.6× 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 ($10.27) and top-graded ($47.03) 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.