How much is LEGO Underwater Robot worth?
Set 31090-1 · 207 pieces
$50.00
new / sealed
$33.00
used
+150%
vs $19.99 RRP
$0.24
per piece
LEGO Underwater Robot (31090-1) is worth about $50.00 new (or $33.00 used) at current secondary-market prices, up 150% from its $19.99 retail price.
Value history
Value historytracking since Jul 29, 2026
Currently $50.00 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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