Brock's Onix
Market price
£13.49
Updated 31 Jul 2026
Price movement
7D
30D
Market confidence
Low
9 compsBased on 9 live UK listings
Price trend
Interactive raw market snapshot history.
Current
£13.49
Change
-£0.51
Change %
-3.6%
High
£14.00
Low
£12.45
Average
£13.37
Snapshots
4
High confidenceAdd to collection
Choose the physical version you are adding.
Grading estimate
Indicative raw-to-graded upside before selling fees.
EstimatedRaw value
£13.49
PSA 9 estimate
£21.58
-£11.91 after grading
PSA 10 estimate
£40.47
£6.98 after grading
Uses an estimated £20.00grading cost. Final ROI depends on condition, grading outcome, turnaround time, postage and selling fees.
Market details
90-day high
£14.00
90-day low
£12.45
Volatility
6.6%
Avg move between snapshots
History confidence
Medium
4 snapshotsUseful history with moderate depth
Recent marketplace listings
These listings help explain the current market price. Always check condition, postage and seller details.
Brock's Onix 21/132 Gym Heroes Set
graded · GB
View this listing on eBay
£8.99
free postage
Excellent deal · 33.4%
Pokemon TCG; Brock’s Onix, #21 Gym Heroes 1999-2000. Vintage WOTC.
graded · GB
View this listing on eBay
£10.29
inc. £2.70 postage
Excellent deal · 23.7%
NM Brock's Onix 21/132 Gym Heroes Vintage Pokemon Card TCG WOTC UK
graded · GB
View this listing on eBay
£13.49
free postage
Fair price · 0.0%
Brock's Onix (21/132) Rare Gym Heroes Set Pokemon Card! FAST & FREE P&P!
graded · GB
View this listing on eBay
£11.49
free postage
Good deal · 14.8%
Brock's Onix 21/132 Gym Heroes Set Pokemon Card - Near Mint
graded · GB
View this listing on eBay
£10.60
inc. £0.87 postage
Excellent deal · 21.4%
Sold price examples
No recent sold data found yet.