71720Fire Stone Mech
- 2020released
- 977pieces
- 5minifigures
- Ninjagotheme
Typical new & sealed
£116
from £106 · 11.9p/piece
Typical used & complete
–
from – · too few listings
· 13% below typical
View on eBay →
Updated 2h ago · 14 listings found
Price history
eBay UK · median Buy It Now asking price
We started tracking this set on 18 Oct 2026. The chart fills in as we record prices each day.
14 listings
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£34.16 incl. £2.26 postage 3.5p/piece 13% below typical -
£36.24 incl. £2.26 postage 3.7p/piece 8% below typical -
LEGO Ninjago 71720 Fire Stone Mech with Minifigures UK
Used · not stated
thelegolab66 · 99.9% · 3,358 feedback£38.67 incl. £2.62 postage 4.0p/piece About typical -
LEGO Ninjago 71720 Fire Stone Mechanical Building Kit UK
Used · not stated
hiran1978 · 100% · 269 feedback£39.07 incl. £2.26 postage 4.0p/piece About typical -
Lego Ninjago Fire Stone Mech 71720 With Instructions +4 Minifigures Read Descrip UK
Used · not stated
📘 Instructions jacobs_shop19 · 99.5% · 1,211 feedback£39.36 incl. £2.26 postage 4.0p/piece About typical -
£39.36 incl. £2.26 postage 4.0p/piece About typical -
LEGO NINJAGO: Fire Stone Mech (71720) Built with 3 Minifigures UK
Used · not stated
alibaba2671 · 100% · 1,250 feedback£42.25 incl. £2.26 postage 4.3p/piece 7% above typical -
LEGO NINJAGO. Fire Stone Mech (71720) UK
Used · not stated
⏱ 6d 13h · 0 bids fusspot22 · 98% · 352 feedback£44.12 incl. £3.38 postage 4.5p/piece Current bid -
£56.08 incl. £3.38 postage 5.7p/piece 42% above typical -
LEGO NINJAGO: Fire Stone Mech (71720) | Used In Great Condition UK
Used · not stated
ihza-90 · 100% · 6 feedback · ⚠ check carefully£60.86 incl. £2.96 postage 6.2p/piece 55% above typical -
LEGO Ninjago 71720 - Fire Stone Mech - BRAND NEW in original Sealed Box UK
New & sealed
📦 Box 📘 Instructions gameon76 · 100% · 223 feedback£106 incl. £5.92 postage 10.8p/piece 9% below typical -
LEGO 71720 Ninjago Fire Stone Mech - Brand New, Factory Sealed UK
New & sealed
📦 Box 📘 Instructions preciousbricks · 100% · 690 feedback£111 incl. £5.92 postage 11.3p/piece 5% below typical -
Lego Ninjago: 71720 - Fire Stone Mech - Brand New & Factory Sealed - Freepost UK
New & sealed
📦 Box 📘 Instructions ballylucus · 99.5% · 3,496 feedback£122 incl. £7.08 postage 12.5p/piece 5% above typical -
LEGO NINJAGO: Fire Stone Mech (71720) UK
New & sealed
📦 Box 📘 Instructions mayah2204 · 100% · 1,485 feedback£130 incl. £4.90 postage 13.3p/piece 12% above typical
Only seeing UK listings. Compare all 5 countries →
Before you buy 71720
- Check all 5 minifigures are included. Minifigures are the first thing sold off from used sets, and often the most valuable part.
- “Complete” should mean all 977 pieces. Ask the seller whether they checked against the inventory or just think it's complete.
- Sealed means factory seals intact. Ask for photos of the seals and box corners; box condition moves the price a lot on retired sets.
- Check the seller's feedback. For a retired set, stick to sellers with 98%+ feedback and a history of selling LEGO.
- Watch out for knock-offs. Brands like Lepin and Mould King copy popular sets. Look for the LEGO logo on the box and bricks.
- Pay through eBay. eBay's Money Back Guarantee covers items that don't match the description, but only if you pay through eBay.
Questions
How much is LEGO 71720 Fire Stone Mech worth?
Based on current eBay UK Buy It Now listings, a new sealed set typically costs £116, including postage. These are asking prices, so a set can sell for less.
How many pieces are in LEGO 71720?
Fire Stone Mech has 977 pieces and 5 minifigures. It was released in 2020.
What is the price per piece of 71720?
At the typical sealed price of £116 it works out at 11.9p per piece.
