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LEGO Ideas and CUUSOO Sea Serpent (40912-1)

LEGO Ideas and CUUSOO Sea Serpent (40912-1)

New Sealed

Market Read

High confidence - Historical completed sales

CollectAIO Value

$51.99
21 historical sales25 active listings

Based on historical completed sales; newest matched sale Jul 31, 2026. Current asking prices are shown separately. A newly calculated value does not mean a new sale occurred.

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Price History

CollectAIO Estimate

Today's CollectAIO Value: $51.99 Based on historical completed sales; newest matched sale Jul 31, 2026. Current asking prices are shown separately. A newly calculated value does not mean a new sale occurred.

Estimated from archived BrickLink, TCGPlayer, and matched eBay signals where available. Raw source lines are available in Compare sources.

Details
Set Number: 40912-1
Year: 2026
0
Theme Path: LEGO Ideas and CUUSOO

Included Minifigs

Loose Complete resale floor. Not added to sealed set value.

$24.54 total2 of 2 priced
Minifigs Griffin Knight, Male, Dark Blue Arms (FIG-017959)
Minifigs Griffin Knight, Male, Dark Blue Arms (FIG-017959)
fig-017959Qty 1Active floor
Sold $15.15 / Active $12.90
Unit
$12.90
Extended
$12.90
Minifigs Griffin Knight, Female, Dark Blue Arms (FIG-017958)
Minifigs Griffin Knight, Female, Dark Blue Arms (FIG-017958)
fig-017958Qty 1Active floor
Sold $24.54 / Active $11.64
Unit
$11.64
Extended
$11.64

Historical Sold Comp Trend

Historical matched sales moved down -$9.80 (-16.4%) from week of Jun 29 to week of Jul 27; latest sale Jul 31, 2026.

View trend

Older matched eBay sales are shown as historical context, not current momentum.

First Week
$59.79
Week of Jun 29 • 1 comp
Latest Week
$49.99
Week of Jul 27 • 3 comps
Move
-$9.80
21 included sold comps across 5 weeks
21 matched eBay sold comps used in historical context
Collector previewLoaded row sorting is free during launch.
Sorted by sold date (descending)

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