No hidden values
Last observed Aug 25, 2026
Koffing prices by grade
| Grade | Estimated value |
|---|---|
| Raw | $1.25 |
| PSA 10 | $140 |
| PSA 9 | $45.00 |
| PSA 8 | $11.98 |
| PSA 7 | $31.50 |
| PSA 6 | $8.98 |
Show all 24 grades
| Grade | Estimated value |
|---|---|
| PSA 5 | $7.50 |
| PSA 4 | $12.00 |
| CGC 10 | $24.00 |
| CGC 10 PRISTINE | $56.40 |
| CGC 9.5 | $18.00 |
| BGS 9 | $10.80 |
| CGC 9 | $9.60 |
| CGC 8.5 | $10.00 |
| CGC 8 | $10.80 |
| CGC 7.5 | $6.00 |
| CGC 7 | $7.20 |
| CGC 6.5 | $12.00 |
| CGC 6 | $6.00 |
| CGC 5.5 | $7.00 |
| CGC 5 | $7.20 |
| CGC 4.5 | $4.00 |
| CGC 4 | $6.00 |
| CGC AUTH | $9.00 |
Recorded market snapshots
10 recorded points
Price history by grade
Latest$1.25
30D change-71.1%
Recorded range$1.25–$4.33
Latest$1.25
90D change-71.1%
Recorded range$1.25–$4.33
Latest$1.25
1Y change-75.9%
Recorded range$1.06–$5.18
Latest$140
90D change+24.6%
Recorded range$94.00–$140
Latest$140
1Y change+88.4%
Recorded range$49.99–$140
Latest$45.00
30D change+83.1%
Recorded range$24.58–$45.00
Latest$45.00
90D change+12.5%
Recorded range$24.58–$45.00
Latest$45.00
1Y change-4.3%
Recorded range$24.58–$55.00
View Raw history as a table
| Date | Recorded estimate |
|---|---|
| Jul 3, 2026 | $1.25 |
| Jun 24, 2026 | $3.25 |
| Jun 10, 2026 | $1.25 |
| Jun 5, 2026 | $4.33 |
| Jan 4, 2026 | $1.33 |
| Nov 30, 2025 | $1.31 |
| Oct 29, 2025 | $1.06 |
| Sep 24, 2025 | $1.08 |
| Aug 24, 2025 | $2.25 |
| Jul 14, 2025 | $5.18 |
View PSA 10 history as a table
| Date | Recorded estimate |
|---|---|
| Jun 30, 2026 | $140 |
| May 27, 2026 | $94.00 |
| Apr 5, 2026 | $113 |
| Dec 15, 2025 | $76.80 |
| Oct 31, 2025 | $49.99 |
| Sep 15, 2025 | $74.40 |
View PSA 9 history as a table
| Date | Recorded estimate |
|---|---|
| Jun 15, 2026 | $45.00 |
| May 28, 2026 | $24.58 |
| Apr 26, 2026 | $39.99 |
| Mar 11, 2026 | $55.00 |
| Feb 3, 2026 | $44.99 |
| Jan 1, 2026 | $33.63 |
| Nov 7, 2025 | $28.00 |
| Jul 15, 2025 | $47.00 |
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 6 sales over 30 days. Compare recent listings and completed sales before buying or selling.
