2025 Topps Base Set Coby Mayo Red Diamante #20
2025
See all Coby Mayo cards & valuesRare
$39.39est. value (ungraded)
Prices updated 2026-11-05
Based on recorded sold prices how we price cards
Card number
#20
Year
2025
Parallel / variant
Red Diamante
Price by month
Average price of the 2025 Topps Base Set Coby Mayo Red Diamante #20 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
$39.39
Recorded low
$39.39
| Month | Source | Average | Range |
|---|---|---|---|
| Nov 2026 | Market value | $39.39 | — |
Coby Mayo prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $39.39 | Buy on eBay ↗ |
| PSA 9 | $199.99 | Buy on eBay ↗ |
| Grade 9.5 | $220.00 | Buy on eBay ↗ |
Other versions of this Coby Mayo card
70 versions, each priced on its own. Most valuable first.
Orange Foil Flagship Real One Autograph
$178
Not enough history yet
Raw $178PSA 9 $145Checked 2026-11-05
Green Foil Flagship Real One Autograph
$55.70
Not enough history yet
Raw $55.70PSA 9 $40.00PSA 10 $78.77Checked 2026-11-05
Golden Mirror Image Variation
$50.47
Not enough history yet
Raw $50.47PSA 9 $96.90PSA 10 $116Checked 2026-11-05
Gold Big Head Variation
$41.50
Not enough history yet
Raw $41.50PSA 9 $73.58PSA 10 $189Checked 2026-11-05
Vintage Stock Retro · $27.49Black · $26.88Independence Day · $23.62Gold Foil · $23.14Flagship Real One Autograph · $22.97Spring Training Gold · $19.49Gold Rainbow · $19.00Blue Foil · $18.59Memorial Day Camo · $18.00Gold Foil Flagship Real One Autograph · $17.50Flowers · $17.00Complete Set Foilboard · $15.71Canvas · $15.00Gold Diamante · $15.00Aqua Foil · $14.99Team Color · $14.99Green Rainbow · $9.01Blue Rainbow · $7.49Orange Diamante · $7.00Spring Training Green · $6.49Orange Rainbow · $5.99Gold · $5.45Purple Rainbow · $5.00Green Foil · $3.86Aqua Rainbow Foil · $3.54Tinsel · $3.50Purple Foil · $3.21Topps Foil Pattern · $3.20Platinum · $2.63Pink Foil · $2.50Oversized · $2.26Holiday · $2.00Tin Variations · $2.00Pink Diamante Foil · $1.99Silver Cracked · $1.99Rainbow Foil · $1.98Confetti · $1.90Diamante Foil · $1.84Sandglitter · $1.62Holo Foil · $1.50Montgomery · $1.49First · $1.24Base card · $1.21Spring Training · $1.19Silver Rainbow · $1.12Easter Egg · $0.99
Live on eBay
Affiliate — we may earn a commission2025 Topps Base Set Coby Mayo Red Diamante #20 value & prices
The 2025 Topps Base Set Coby Mayo Red Diamante #20 is a Baseball card (Red Diamante parallel) released in 2025. Ungraded copies carry a market value of about $39.39.
An ungraded copy is worth around $39.39 and a PSA 9 around $199.99.
Is it worth grading?
With raw copies near $39.39 and top grades reaching $199.99, grading a sharp copy of this card can clearly pay for itself — the spread comfortably covers a typical ~$25.00 grading fee. The catch: only submit copies with strong centering, clean corners, and unmarked surfaces, because anything below a 9 usually erases the math.
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