| TCGplayer market | $1.50 | verify ↗ |
| TCGplayer lowest ask | $0.91 |
Unlocking the Development Diagram [Normal] has a TCGplayer market price of $1.50 as of 2026-09-17.
Unlocking the Development Diagram [Normal] is down 9.1% over 7 days, down 20.2% over 30 days (TCGplayer market price, as of 2026-09-17). A 30-day drop this size is common after a reprint or a set rotation; the daily chart shows whether it has found a floor.
In TickerMint's daily data (since February 2025), the all-time high market price for Unlocking the Development Diagram [Normal] is $1.97 (2026-09-01) and the all-time low is $0.46 (2026-07-05).
The TickerMint Estimate for Unlocking the Development Diagram is $1.50. It is a fee-adjusted fair value blending TCGplayer and eBay data to estimate what a seller nets after marketplace fees.
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