About Mosasaurus
LEGO 6721 Mosasaurus is part of the LEGO Dinosaurs theme, contains 26 pieces. Its original US MSRP was $9.99. BrickPicker tracks live retailer pricing across Amazon, Walmart, Target and LEGO.com, eBay sold history, BrickLink part-out value, retirement forecasts and an investment score for Mosasaurus.
Mosasaurus: your questions, our data
Answered live from BrickPicker’s market tracking, review analysis and retirement model — these update as the data does.
- What is LEGO 6721 Mosasaurus worth today?
- BrickPicker currently values a sealed Mosasaurus at $99.99, based on 4 eBay sales over the last 365 days. That is 901% above its original $9.99 US retail price. The full price history is on this page.
- Is LEGO 6721 Mosasaurus a good investment?
- It is still available at retail, and sealed examples currently trade around $99.99 versus a $9.99 MSRP. Retirement is usually the catalyst that moves a set's aftermarket price. BrickPicker subscribers get the full Max Profit analysis for this set, which weighs eBay sold trends, retirement timing, liquidity and reviewer sentiment into one verdict.
- Is LEGO 6721 Mosasaurus retired?
- No, it is currently available at retail. BrickPicker tracks its availability across major US retailers daily.
