No hidden values
Last observed Jul 27, 2026
Koffing prices by grade
| Grade | Estimated value |
|---|---|
| Raw | $3.65 |
| PSA 10 | $129 |
| PSA 9 | $45.00 |
| PSA 8.5 | $9.60 |
| PSA 8 | $23.00 |
| PSA 7 | $70.00 |
| PSA 6 | $17.50 |
| PSA 5 | $19.99 |
| PSA 4 | $19.52 |
| CGC 10 | $58.00 |
| CGC 9 | $15.60 |
| CGC 8.5 | $12.00 |
| CGC 8 | $10.80 |
| CGC 7.5 | $6.00 |
| CGC 6.5 | $7.20 |
Recorded market snapshots
Raw price history
Jan 8, 2026$3.65
Jan 6, 2026$6.69
Dec 20, 2025$7.24
Nov 3, 2025$1.73
Oct 11, 2025$2.75
Sep 1, 2025$58.47
Aug 5, 2025$2.50
What affects this card’s price?
The estimate above applies to the 1999 1999 Pokemon Base Set #51 printing. A card with the same character or player from another set can have a very different value.
Condition and professional grade
Centering, corners, edges and surface quality can move a card between raw and graded price levels. A high grade should never be assumed from a listing photo alone.
Variant and exact print
This record is marked as the Shadowless variant. Confirm that marking before using the estimate.
Market activity
The source snapshot recorded 6 sales over 30 days. Compare recent listings and completed sales before buying or selling.
