How much is LEGO Fire Stone Mech worth?
Set 71720-1 · 977 pieces
$104.49
new / sealed
$70.00
used
+49%
vs $69.99 RRP
$0.11
per piece
LEGO Fire Stone Mech (71720-1) is worth about $104.49 new (or $70.00 used) at current secondary-market prices, up 49% from its $69.99 retail price.
Value history
Value historytracking since Jul 28, 2026
Currently $104.49 new. We just started tracking this set’s value. The chart fills in as prices are re-checked over the coming weeks.
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