1999 Base Set #51/102 Koffing (CGC 9 MINT)

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Asking price$18.60USDCListed price updated 10 min ago

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Valuation

Fair market valueEstimateGraded.Markets FMV · as of Aug 22 · how we price

$18.37

Platform estimateCourtyard Est. Value · not our FMV

$18.60

Insured valuenot reported by platform

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Details

Type: Graded card
Grading company: CGC
Grade: 9 MINT
Cert number: 1401020736212
Set: Base Set
Card number: 51/102
Year: 1999
Language: English
Franchise: Pokémon

Price history — asks observed by Graded.Markets

Aug 22, 2026, 12:07 PM−8.3%$18.60
Aug 20, 2026, 3:26 PM$20.28

First seen Aug 20, 2026, 3:26 PM · last synced 10 min ago · listed Aug 22, 2026, 11:59 AM. Data aggregated from Courtyard; FMV figures combine licensed market data calibrated against observed sales, provided as-is.