Home › All sets › Northern Lights Diorama 40785

LEGO Northern Lights Diorama 40785

Retired 2025 · 332 pieces · Factory sealed · Set 40785
LEGO 40785 Northern Lights Diorama 40785 sealed box front

Every copy of the Northern Lights Diorama that we list is factory sealed and checked against our condition list before it goes on sale.

£25.99 Free tracked UK delivery over £85
In stock, 4 sealed. Order before 3pm and it goes out today, tracked and insured.
Genuine and sealed, or your money back.
Found it cheaper somewhere else? Send us the link and we will match it if we can. We keep our prices in line with the wider UK market, so you are not paying a specialist premium. Send us the link

Our sealed guarantee

If a set from us is not genuine and factory sealed, tell me and I refund in full and pay the return postage. Returns for any other reason within 30 days.

Klarna Pay in 3 at checkout, no interest
Pay how you like
American Express Apple Pay Google Pay KlarnaMastercard PayPalShop Pay Visa
Klarna Pay in 3 splits it into three payments with no interest. Chosen at checkout.
Rated on Trustpilot

“Even before I ordered my Lego Defender I was having a good experience with Buy My Bricks, emailed customer service with a few questions and I got a brilliant response.”

Jonathan L., Trustpilot · Verified · Jan 2026
Read all our reviews on Trustpilot
About this set

Retirement and specification

Set number40785
Pieces332
Released2025
Retired2025
Built size12 × 12 × 9 cm
Age guide12+
ConditionNew, factory sealed

LEGO stopped making this set in 2025. It is not coming back, so sealed copies are what is left.

What you are actually buying

What turns up at your door

The sealed box itselfThe set in its original factory-sealed box, not a bagged or re-boxed copy. Seals and tape are checked before it is listed.
Any box wear, written downRetired boxes have been in lofts and on shelves. Anything worth knowing is on the listing before you buy, not after.
Packed to survive the courierBoxed inside a second carton with fill, so the set box is not the thing taking the knocks.
Tracked and insured, every orderYou get the tracking number the day it leaves. If it is lost or damaged in transit that is ours to sort, not yours.
Why we rate this set

Northern Lights Diorama 40785

The LEGO Northern Lights Diorama (40785) was released in 2025 as part of the LEGO Promotional line and is built from 332 pieces. It retired in 2025 and is no longer manufactured, so sealed examples now come from stock that was bought while it was on sale.
In depth

The full description

The LEGO Northern Lights Diorama (40785) is a set from the LEGO Promotional line, built from 332 pieces, originally released in 2025. It retired in 2025 and is no longer manufactured.

What you get

  • Factory-sealed LEGO set 40785
  • Original LEGO packaging with the factory seal intact
  • The complete set as released by LEGO
  • Original LEGO instructions inside the sealed packaging
  • Free UK tracked delivery on orders over £85
  • 30-day returns on every order

Why this retired set matters

Promotional sets are released as gifts with purchase or for a short event window, so they are not part of the regular catalogue.

Sealed examples of Northern Lights Diorama are no longer produced, and have not been since 2025. What you are buying from us is an original sealed copy, sourced through our UK trade network and inspected before it was listed.

Who this is for

At 332 pieces it is a relaxed single-sitting build. It suits a collector completing a theme, or anyone buying a sealed set as a gift. LEGO give the age guide as 12+.

Condition guarantee

Every LEGO set we list is inspected on arrival at our Yorkshire warehouse. We check:

  • Original factory seal stickers on all box flaps, with no re-taping
  • No sign of opening and re-sealing, such as edge creases or lifted corners
  • The set number on the box matches the set listed
  • Box condition graded honestly. Minor shelf wear is normal on an older set and we describe it where it is present

If a set fails any of those checks it does not get listed.

Delivery and returns

UK tracked delivery, free on orders over £85. Orders placed before 2pm on a working day are despatched the same day. Every order has 30-day returns.

Frequently asked questions about LEGO Northern Lights Diorama 40785

Is the LEGO Northern Lights Diorama 40785 retired?

Yes. It retired in 2025 and LEGO no longer manufacture it. Sealed copies come from stock bought while it was still on sale.

Is this set sealed and genuine?

Yes. Every set is factory sealed and is checked against our condition list before listing. We do not list a set that fails any of those checks.

How many pieces are in LEGO 40785?

LEGO 40785 contains 332 pieces.

How quickly does it ship?

Orders placed before 2pm on a working day are despatched the same day, on a tracked UK service.

Common questions

The things people ask

Is it genuine and factory sealed, and what if it is not?
Every set is checked before it is listed: the factory seals and tape first, then the corners and edges, and anything worth knowing about the box goes on the listing. If a set from us is not genuine and factory sealed, tell me and I refund in full and pay the return postage. We sell sealed retired sets and nothing else, so there is no opened or used stock for yours to get mixed up with. Returns for any other reason are within 30 days, sealed, as the returns policy says.
When will it arrive?
Order before 3pm on a working day and it goes out the same day, tracked and insured. UK orders arrive within 1 to 3 working days, and you get the tracking number by email as soon as it is on its way. Tracked UK delivery is free over £85.
How is it packed, and what if the box arrives damaged?
The set box travels inside a second carton with fill, so the courier handles the outer box and not the one you are keeping, and every parcel is insured to its full value. If it still turns up damaged, photograph the outer packaging and the set box before you unpack any further, then email support@buymybricks.com with the photos and your order number the same day. We reply the same working day with a replacement if we have one or a full refund, and we deal with the courier claim ourselves so you do not have to.
Do you ship outside the UK?
Yes to the United States and Canada, with tracked and insured delivery costed at checkout before you pay. We do not ship to the EU at the moment. Everywhere in the UK is covered by the standard tracked service.
Can I return it?
Yes, within 30 days of delivery. If it arrived damaged or not as described, tell us and we pay the return postage and refund in full or replace it. If you have simply changed your mind, the set needs to come back sealed and as it arrived, and the return postage is yours. The refund goes back to the card you paid with within 3 working days of the set landing back with us. Use a tracked service so there is proof of delivery.
Is there a discount code?
Yes. Join the email list on any page and your first-order code comes through in the first email, along with what has just landed. We do not print the code on the site, so the list is the way to get it.
Can I pay in instalments?
Yes. Klarna Pay in 3 is at checkout: three equal payments, no interest and nothing extra to pay. Visa, Mastercard, American Express, PayPal, Apple Pay, Google Pay and Shop Pay are all there too. Payment is handled by Shopify Payments and we never see your card details.
Is it going to be a gift?
Tell us in the order notes at checkout and no prices or invoice go in the parcel. Sending it straight to them is fine: put their address as the delivery address and keep yours as the billing address.
Can I have a VAT invoice?
Yes. We are VAT registered and every price on the site already includes VAT. Reply to your order confirmation asking for one and it comes back the same working day. For a business or bulk order, email support@buymybricks.com before you buy and we will sort an itemised invoice.
Not the set you want?
Tell us the set number and we will look for a sealed one through the trade. If we find one at a sensible price you get an email with the link before it goes on the site. Ask us to find it.

Not answered here? Email support@buymybricks.com or ring 01904 900212. A person reads it, usually the same day.

Before you buy

Guides for this set

£25.99