Grade Matrix
Graded
PSA 6
-
Grade 7 guide
$21
Grade 8 guide
$24
Grade 9 guide
$26
PSA 10
$190
PSA 10: 1 sale, last 45 days · Oct 6, 2026 · checked Oct 27, 2026
Grade 9: No recent PSA 9 sales. PriceCharting Grade 9 guide, mixing PSA, CGC, BGS, SGC and TAG 9s.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
CGC
CGC 8
-
CGC 9
-
CGC 10
$55
CGC P10
-
Availability
Availabilityi
1/10G: 3/y
Graded: ~3 sales/yr (extremely low) · Sales per year: ~114 sales/yr · Recent sales: 1 PSA 10 comp · Raw recent sales: 60 · Grade 9 recent sales: 19 · PSA 10 recent sales: 16 · Graded copies: 141
TCGplayer Price History
NormalProduct 85719
No Normal price series for this product. Available: 1st Edition, Unlimited.
Card Value FAQ
How much is Giovanni's Nidoqueen (Gym Challenge #23) worth?
GemDelta shows Giovanni's Nidoqueen (Gym Challenge #23) at $14.57 market price (PriceCharting raw (eBay sold fallback)). Its Delta multiple is 13.0x.
How much is a PSA 10 Giovanni's Nidoqueen (Gym Challenge #23) worth?
A PSA 10 Giovanni's Nidoqueen (Gym Challenge #23) is currently shown at $190, the only PSA 10 sale in the last 45 days (Oct 6, 2026).
Is Giovanni's Nidoqueen (Gym Challenge #23) worth grading?
GemDelta records a 24.8% gem rate for Giovanni's Nidoqueen (Gym Challenge #23), with 35 PSA 10 copies out of 141 total PSA grades and a 13.0x Delta. That describes the grading profile; it is not financial advice.
PSA 10 Recent sales
| Date | Listing | Sale |
|---|---|---|
| Oct 6, 2026 | 2000 POKEMON GYM CHALLENGE #23 GIOVANNI'S NIDOQUEEN PSA 10 GEM MINT #23 | $189.99 |