No hidden values
Last observed Sep 28, 2026
Koffing prices by grade
| Grade | Estimated value |
|---|---|
| Raw | $2.25 |
| PSA 10 | $126 |
| PSA 9 | $33.55 |
| PSA 8 | $39.99 |
| PSA 7 | $17.09 |
| PSA 6 | $21.00 |
Show all 25 grades
| Grade | Estimated value |
|---|---|
| PSA 5 | $18.00 |
| PSA 4 | $12.00 |
| CGC 10 | $49.00 |
| CGC 10 PRISTINE | $56.40 |
| CGC 9.5 | $13.50 |
| BGS 9 | $22.00 |
| CGC 9 | $10.00 |
| TAG 9 | $23.00 |
| CGC 8.5 | $7.80 |
| CGC 8 | $19.99 |
| CGC 7.5 | $6.00 |
| CGC 7 | $7.20 |
| CGC 6.5 | $3.25 |
| CGC 6 | $7.00 |
| CGC 5.5 | $7.00 |
| CGC 5 | $7.20 |
| CGC 4.5 | $4.00 |
| CGC 4 | $6.00 |
| CGC AUTH | $6.00 |
Recorded market snapshots
31 recorded points
Price history by grade
Latest$2.25
30D change+60.7%
Recorded range$1.25–$4.99
Latest$2.25
90D change-58.3%
Recorded range$1.25–$8.87
Latest$2.25
1Y change-21.1%
Recorded range$0.72–$8.87
Latest$126
30D change-36.7%
Recorded range$126–$199
Latest$126
90D change-10.1%
Recorded range$108–$199
Latest$126
1Y change+152.1%
Recorded range$49.99–$199
Latest$33.55
30D change+8.2%
Recorded range$31.00–$64.99
Latest$33.55
90D change+0.9%
Recorded range$26.90–$100
Latest$33.55
1Y change+19.8%
Recorded range$20.50–$100
View Raw history as a table
| Date | Recorded estimate |
|---|---|
| Sep 19, 2026 | $2.25 |
| Sep 10, 2026 | $4.99 |
| Sep 8, 2026 | $1.25 |
| Aug 20, 2026 | $1.40 |
| Aug 18, 2026 | $2.25 |
| Aug 14, 2026 | $8.87 |
| Aug 12, 2026 | $1.79 |
| Aug 7, 2026 | $1.55 |
| Aug 3, 2026 | $1.26 |
| Jul 23, 2026 | $2.00 |
| Jul 12, 2026 | $1.33 |
| Jul 10, 2026 | $8.40 |
| Jul 9, 2026 | $2.45 |
| Jul 8, 2026 | $1.98 |
| Jul 3, 2026 | $1.25 |
| Jun 24, 2026 | $3.25 |
View PSA 10 history as a table
| Date | Recorded estimate |
|---|---|
| Sep 27, 2026 | $126 |
| Sep 22, 2026 | $150 |
| Aug 28, 2026 | $199 |
| Aug 26, 2026 | $110 |
| Aug 6, 2026 | $108 |
| Jun 30, 2026 | $140 |
| May 27, 2026 | $94.00 |
| Apr 5, 2026 | $113 |
| Dec 15, 2025 | $76.80 |
| Oct 31, 2025 | $49.99 |
View PSA 9 history as a table
| Date | Recorded estimate |
|---|---|
| Sep 22, 2026 | $33.55 |
| Sep 21, 2026 | $64.99 |
| Sep 12, 2026 | $44.99 |
| Aug 31, 2026 | $32.04 |
| Aug 27, 2026 | $31.00 |
| Aug 7, 2026 | $30.00 |
| Aug 4, 2026 | $46.99 |
| Aug 3, 2026 | $100 |
| Jul 6, 2026 | $36.15 |
| Jul 2, 2026 | $26.90 |
| Jun 28, 2026 | $31.00 |
| Jun 26, 2026 | $33.25 |
| Jun 23, 2026 | $35.00 |
| Jun 15, 2026 | $45.00 |
| May 28, 2026 | $24.58 |
| Apr 26, 2026 | $47.01 |
What affects this card’s price?
The estimate above applies to the 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
Parallel, holo, reverse holo, first-edition and promotional versions may use different price records. Confirm the set and card number first.
Market activity
The source snapshot recorded 20 sales over 30 days. Compare recent listings and completed sales before buying or selling.
