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PSA 10: PriceCharting; refreshed Sep 10, 2026
GemDelta shows Tranquill (Black Bolt #72) at $3.11 market price (TCGplayer market). Its Delta multiple is 17.1x.
A PSA 10 Tranquill (Black Bolt #72) is currently shown at $40.64. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
GemDelta records a 40.0% gem rate for Tranquill (Black Bolt #72), with 6 PSA 10 copies out of 15 total PSA grades and a 17.1x Delta. That describes the grading profile; it is not financial advice.