Cards › 2018 Panini Crown Royale Kaboom Kevin Durant #1
Is the 2018 Panini Crown Royale Kaboom Kevin Durant #1 worth grading?
Live market numbers as of 2026-10-21 — raw vs. graded value, PSA 10 gem rate, and the breakeven math.
Raw value
$973.00
PSA 9 value
$1,975.00
PSA 10 value
$2,370.00
PSA 10 gem rate
31.8%
Based on the numbers below, this card is potentially worth grading — a PSA 10 nets an estimated $879, but the 31.8% gem rate means the 10 is far from guaranteed. Weigh the PSA 9 outcome below.
The breakeven math
| Line item | Amount |
|---|---|
| Raw purchase | $973.00 |
| Sales tax (8%) | $77.84 |
| Grading fee (priority tier) | $80.00 |
| Shipping | $5.00 |
| Total cost basis | $1,135.84 |
| Net at PSA 10 (85% payout) | +$878.66 (+77%) |
| Net at PSA 9 (the downside case) | +$542.91 |
Assumptions: $80 grading, $5 shipping, 8% tax on the raw purchase, and keeping 85% of the sale after marketplace fees. Your numbers will differ — run them below.
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Start free trialCard pricing data provided by SportsCardsPro, a service of PriceCharting. Gem rates reflect recent PSA population data (22 graded submissions). Not investment advice — grading outcomes are probabilistic and markets move. © Summit Sports Cards · About · Pricing