#21362
Ideas
Mineral Collection
from $67
$0.08/pc
#21345
Ideas
Polaroid OneStep SX-70 Camera
from $79
$0.16/pc
#21349
Ideas
Tuxedo Cat
from $99
$0.06/pc
Every LEGO Ideas set under $100, tracked across 3 retailers — 3 sets in this selection. We compare each live price to the official LEGO RRP, so you see the real saving.
The cheapest LEGO Ideas under $100 right now is $67. Prices and stock update daily, with full 12-month price history on every set.
Frequently asked questions
What's the cheapest LEGO Ideas under $100?
Right now it's $67. Brickheist compares live prices across retailers and shows the official RRP plus price history, so you can spot a genuine deal.