© 2026 Obsidian Grid LLC · POKEMARKET
Contact: support@pokemarketcap.com
PokeMarket is independent and not affiliated with, endorsed or sponsored by Nintendo, The Pokémon Company, Game Freak or Creatures. Pokémon and card names and images are trademarks of their owners.
Privacy PolicyTerms of ServiceRefund & ShippingContact

POKEMARKET

THE POKEMON CARD TERMINAL

← BACK TO GYM HEROES
BROCK'S ONIX #021/132
HomeSetsPokemonSealedAnalyticsPortfolioOur Store
+ ADDTO COLLECTION
—:—:—
 
Brock's Onix (21)
Brock's OnixBrock's Onix
021/132
RARERARE
UNLIMITEDUNLIMITED
Gym Heroes2000
+ ADD TO COLLECTION
Graded Cap$9.4K
PSA 10$328
Raw NM$12
$328Pop 22
Gym Heroes2000
Price & Volume History
Loading…
Market
Last Sale
$238
40 days ago
Price Estimate
$328
MODELED
At all-time high
On eBay · Lowest PSA 10 Buy It Now
See listings ↗
Price Confidence:Modeled · Set
Sales
Sales
2026-09-26$238
2026-07-03$389
2026-03-14$132
2026-01-06$122
2025-05-22$90
Sales
11 sales · Nov 15 2021 – Sep 26 2026
2026-09-26$238eBay
2026-07-03$389eBay
2026-03-14$132eBay
2026-01-06$122eBay
2025-05-22$90eBay
2025-02-02$80eBay
2024-09-09$96eBay
2023-11-27$70eBay
2022-10-08$45eBay
2022-01-01$37eBay
2021-11-15$104eBay
See live PSA 10 listings on eBay ↗
Grading
Snapshot
Key Metrics · Grading Activity
Percentile vs.
MetricValueSetEraAll
Value / CopyPSA 10 price divided by how many PSA 10 copies exist. Roughly: how much value rides on each perfect copy.$1543——
Gem RateOf every copy PSA has ever graded, the share that came back a perfect 10.17.1%365556
Gem Premium (10:9)How much more a PSA 10 costs than a PSA 9 of this card. 2.5× means the perfect copy sells for 2.5 times the near-perfect one.4.4×162219
Vs ExpectedThis card's price vs what you'd expect for a card with its PSA 10 population in its era. 9× means the market pays nine times what rarity alone explains — collector demand. Below 1× means it's cheaper than its scarcity suggests.0.2×332423
PSA10
22
PSA
Total: 129
Gem Rate: 17.1%
Cumulative Grading
129graded22PSA 10Apr 26Nov 26
All Grades
129 total graded · click to change view
▍ PSA
▍ Raw
▍ Other Grades
Related Cards
▍ Variants1
1st Edition
021/132
Brock's Onix (21)
PSA 10$731
NM$23
▍ Same Set2
1st Edition
069/132
Brock's Onix (69)
PSA 10$860
NM$12
Unlimited
069/132
Brock's Onix (69)
PSA 10$620
NM$1
▍ Same Pokémon7
COMMON
65/115
Onix
PSA 10$352
Ungr.$1
COMMON
138/264
Onix
PSA 10$261
NM$0
COMMON
69/109
Onix
PSA 10$249
Ungr.$2
COMMON
105/236
Onix
PSA 10$241
NM$0
COMMON
084/130
Onix
PSA 10$227
NM$1
Shadowless
056/102
Onix
PSA 10$225
NM$4
1st Edition
069/111
Onix
PSA 10$445
NM$7
eBay Listings
See live PSA 10 listings on eBay ↗