// LEGO
LEGO MINDSTORMS Robot Inventor 51515Verified
Last updated 19/07/2026
Market value · sealed
$650
19 real sales · range $525–$800Verified
Price trendmonthly median sold price
LiquidityTrades often7 sold in 60 days
Last sold2mo ago60-day median $650
Key facts
✦ AI poweredAI-generated from public knowledge. A helpful guide, verify anything important.
UngradedUngraded · Sealed
Real captured sales · monthly medians · hover a point
GradeHighTypicalLowSales
Sealed$800$650$52519
Loose$400$400$4001
Raw / played$499$489$4792
Raw$999$452$15038
$675
$419
$300
$999
$390
$725
$650
$634$444
$200$316$650No captured sales in this grade yet.
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Verifiedreal sold salesEstimatedmarket snapshotNo data yetnever an invented number
A note on prices.Every value here is an estimate, drawn from public sales data and third-party sources. It's a guide, not a valuation or an offer, and it can be incomplete or out of date. Check an item yourself before you buy or sell. Grailsnap can't take responsibility for decisions made on these figures.Market price data sourced in part from PriceCharting.