Cards › 2025 Bowman Chrome Autograph Kon Knueppel #BCA-KK Reptilian Green Refractor

Is the 2025 Bowman Chrome Autograph Kon Knueppel #BCA-KK Reptilian Green Refractor worth grading?

Live market numbers as of 2026-10-21 — raw vs. graded value, PSA 10 gem rate, and the breakeven math.

Raw value

$599.99

PSA 9 value

$942.36

PSA 10 value

$2,684.19

PSA 10 gem rate

75%

Based on the numbers below, this card is a strong grading candidate at current prices: a PSA 10 nets an estimated $1,549 profit and 75% of recent submissions gemmed.

The breakeven math

Line item	Amount
Raw purchase	$599.99
Sales tax (8%)	$48.00
Grading fee (priority tier)	$80.00
Shipping	$5.00
Total cost basis	$732.99
Net at PSA 10 (85% payout)	+$1,548.57 (+211%)
Net at PSA 9 (the downside case)	+$68.02

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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Card pricing data provided by SportsCardsPro, a service of PriceCharting. Gem rates reflect recent PSA population data (4 graded submissions). Not investment advice — grading outcomes are probabilistic and markets move. © Summit Sports Cards · About · Pricing