Available 
Geeetech Tri Color Silk PLA Filament , 3D Filament 1,75 mm 1KG Spool Wire (+/-0.03mm) Vacuum packaging, special color
from £9.29.
£9.29
Options tracked: Red Black Gold, Purple Gold Black, Blue Purple Black, Red Blue Green
Value guide
Cheapest 3d printer filament worth comparing
Five GEEETECH PLA filament spools are worth comparing on AliExpress, with the lowest listed starting price at £8.54 and finish details that can change value.
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Last verified: 2026-06-17
Quick verdict
This is a comparison shortlist, not a single universal winner. All five picks are GEEETECH and PLA-based, with the lowest listed starting price at £8.54 and a visible spread up to £13.29, so the real question is whether a silk, matte, luminous or tangle-free option fits your project better than the cheapest sticker price. If you want general maker filament, PLA in 1.75 mm 1 kg spool format is the most sensible starting point here, but you should still check the live delivery cost and checkout total before deciding which listing is actually cheapest for your UK address.
Top picks to compare
Start with Geeetech Tri Color Silk PLA Filament , 3D Filament 1,75 mm 1KG Spool Wire (+/-0.03mm) Vacuum packaging, special color (£9.29), Geeetech 3d printer Filament PLA PETG Plastic 1kg 1.75mm,Tangle-Free, 3d printing wire materials, , , vacuum packaging (£7.55-£8.39), Geeetech Matte Filament PLA 1.75mm 1kg Spool (2.2lbs), 3d printer Material polylactic acid, frosted texture, Vacuum packaging (£8.39) because they give you a focused set of current retailer options to compare. The visible price range is £5.05-£11.79, so check whether the extra spend buys a useful specification difference rather than only a different brand or finish. The shortlist includes GEEETECH, NONE, which helps you compare familiar brands against specification, delivery and value.
Available 
Geeetech 3d printer Filament PLA PETG Plastic 1kg 1.75mm,Tangle-Free, 3d printing wire materials, , , vacuum packaging
from £7.55-£8.39.
£7.55-£8.39
Options tracked: PETG White, PLA Black, PLA Yellow
Available 
Geeetech Matte Filament PLA 1.75mm 1kg Spool (2.2lbs), 3d printer Material polylactic acid, frosted texture, Vacuum packaging
from £8.39.
£8.39
Options tracked: Matte Black
Available 
GEEETECH Luminous PLA Filament for 3D Printer 1.75mm 1kg Glow in the Dark Plastic PLA 3D Printing Materials
from £9.79-£11.79.
£9.79-£11.79
Options tracked: YELLOW, Orange
Available 
Chopped Basalt Fiber Strand Filament 3mm/6mm/9mm/12mm/15mm/18mm Length for Concrete Asphalt Highway Brake Material 1kg
from £5.05-£8.
£5.05-£8
Options tracked: 18mm 1KG, 1kg
At-a-glance comparison
Use this table to scan the shortlist quickly before opening individual product pages. It covers 3D printer filament, so compare like-for-like where possible before deciding which product best fits your device, project, budget and tolerance for delivery times. Key spec differences include PLA; Key spec differences can matter as much as headline price when you are matching a product to a specific need.
| Product | Type | Key spec | Options | From |
|---|---|---|---|---|
| Geeetech Tri Color Silk PLA Filament , 3D Filament 1,75 mm 1KG Spool Wire (+/-0.03mm) Vacuum packaging, special color | 3D printer filament | PLA | Red Black Gold, Purple Gold Black, Blue Purple Black, Red Blue Green | £9.29 |
| Geeetech 3d printer Filament PLA PETG Plastic 1kg 1.75mm,Tangle-Free, 3d printing wire materials, , , vacuum packaging | 3D printer filament | PLA | PETG White, PLA Black, PLA Yellow | £7.55 |
| Geeetech Matte Filament PLA 1.75mm 1kg Spool (2.2lbs), 3d printer Material polylactic acid, frosted texture, Vacuum packaging | 3D printer filament | PLA | Matte Black | £8.39 |
| GEEETECH Luminous PLA Filament for 3D Printer 1.75mm 1kg Glow in the Dark Plastic PLA 3D Printing Materials | 3D printer filament | PLA | YELLOW, Orange | £9.79 |
| Chopped Basalt Fiber Strand Filament 3mm/6mm/9mm/12mm/15mm/18mm Length for Concrete Asphalt Highway Brake Material 1kg | 3D printer filament | Check retailer | 18mm 1KG, 1kg | £5.05 |
What the research shows
The page combines shortlist data, public topic research and retailer details so the advice is more than a generic buying guide. The strongest detail comes from product names, current prices, available variants and retailer-visible specifications. 5 public or retailer sources informed the page, and unsupported claims are left as things to verify rather than stated as facts. Use Geeetech Tri Color Silk PLA Filament , 3D Filament 1,75 mm 1KG Spool Wire (+/-0.03mm) Vacuum packaging, special color (£10.49), Geeetech 3d printer Filament PLA PETG Plastic 1kg 1.75mm,Tangle-Free, 3d printing wire materials, , , vacuum packaging (£8.54-£9.49), Geeetech 1kg 1.75mm Matte PLA 3D Printer Filament Vacuum Packaging Overseas Warehouses A variety of Colors Fast Ship (£9.49) as practical reference points before checking the latest retailer page.
Trade-offs to compare before buying
The decision is less about finding a universal winner and more about matching price spread (£8.54-£13.29), product type (3D printer filament), brand context (GEEETECH) and options and stock to the shopper's actual need. Compare Geeetech Tri Color Silk PLA Filament , 3D Filament 1,75 mm 1KG Spool Wire (+/-0.03mm) Vacuum packaging, special color (£10.49), Geeetech 3d printer Filament PLA PETG Plastic 1kg 1.75mm,Tangle-Free, 3d printing wire materials, , , vacuum packaging (£8.54-£9.49) first, then check whether a cheaper or dearer option changes the specification enough to matter. Before buying, verify live price, delivery cost, stock status and the details that matter for your use case.
Why these picks made the shortlist
The shortlist contains 5 products, and every one is a usable 1.75 mm, 1 kg 3D printer filament spool rather than a tiny accessory or part. That keeps the page focused on real buying choices: filament type, finish, listed tolerance and current price, not filler listings that look cheap but do not solve the printing job. Review evidence is limited in the supplied listings, with no visible ratings or review counts, so this guide leans on product titles, format clarity and current pricing instead of reputation-led ranking.
What the shortlist shows
The main shortlist benchmark sits in a £8.54-£11.09 range, while the broader visible set runs to £13.29, so small price gaps may reflect finish or specification differences rather than a clear step up in quality. Material is PLA across the shortlist, with one mixed PLA/PETG title that needs careful checking so you do not order the wrong material by mistake. The visible variation includes tri-colour silk, matte, luminous and tangle-free/plain styles, and one listing states +/-0.03mm tolerance, which is the kind of detail shoppers should compare when price differences are small.
How to choose between these products
Start by confirming the exact variant is the one you want: PLA, 1.75 mm and 1 kg should all be visible on the product page for the chosen option. Then compare finish against the job in hand, because silk, matte and luminous filament can be useful for different looks but are not automatically better value than plain PLA. The PLA/PETG title deserves extra care, and you should also check stock, delivery cost and delivery time, since those can change which listing is the cheapest in practice. No visible ratings or review counts are present in the available product information, so there is no rating-based ranking to lean on here.
Budget buying notes
For value shopping, the headline price only matters if delivery and checkout total still make sense. A £8.54 filament spool can stop being the best deal once shipping is added, while a slightly dearer matte or silk listing may suit a specific project better if the finish is actually useful. The shortlist is helpful because it compares GEEETECH PLA spools with different finishes and a narrow price spread, but it is not definitive: check live stock, the exact colour or finish, and whether the product page still shows the same price at checkout before buying.
Retailer details used
Last checked 2026-06-17. Use this as a shopping aid rather than a substitute for the live retailer listing. Always confirm the latest price, delivery cost, stock status and product details with the retailer before buying.
Helpful next reads
Keep comparing with related reviews and buying guides before checking the latest retailer prices.
Buying questions
How did you choose these AliExpress filament picks?
They were shortlisted as genuinely usable 3D printer filament spools, not small accessories, with a focus on GEEETECH PLA listings in 1.75 mm and 1 kg format. Price, visible spec clarity, finish differences and live listing details were the main comparison points.
Is the cheapest filament automatically the best value?
No. The £8.54 listing is only better value if delivery cost, delivery time and checkout price still work out sensibly for your address. A matte, silk or luminous option can be worth the extra spend if that finish suits the project better than plain PLA.
Should I be cautious about the PLA/PETG listing?
Yes. The mixed title means you should confirm the exact variant on the live product page before ordering, especially if you want PLA specifically. Check the variant name, the material label and the spool details so you do not end up with a different filament type.
What should I check on delivery before buying AliExpress filament?
Check the live delivery cost, delivery time and in-stock status for the exact colour or finish you want. On cheap filament, shipping can change the real value quickly, so the best-looking sticker price is not always the cheapest overall option.
Why are there no rating-based rankings in this shortlist?
The supplied listings do not show visible ratings or review counts, so there is not enough public review details to rank these by customer feedback. That makes price, spec clarity, finish and delivery details more useful comparison points for this page.