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Rainbow & gradient filament, single spools, ranked by £/kg — page 3

Every listing we track on Amazon UK that matches all of these filters, ranked by £/kg. Remove a filter with its "All" chip to widen the list.

Silk, dual colour and gradient filament explained →

175 listings tracked, 45 on offer right now.

Product	Material	Weight	Rating	Price	Per kg	Deal
iBOSS Macaron Rainbow PLA+ Silk 3D Printer Filament, 1.75 mm, 1 kg (1000g), 32	PLA+	1 kg	★★★★½ 4.6 out of 5 (31 Amazon ratings)	£27.57	£27.57	5% below
IEMAI PETG Filament 1.75mm 1Kg, Luminous Rainbow PETG 3D Printer Filament, Glo	PETG	1 kg	★★★½☆ 3.4 out of 5 (29 Amazon ratings)	£27.64	£27.64	—
WISDREAM PLA Forest/Jungle/Military Rainbow Gradient Multicolor Rainbow PLA Fi	PLA	1 kg	★★★★½ 4.5 out of 5 (201 Amazon ratings)	£27.95	£27.95	32% below
Bright Silk 1.75mm PLA Filament with Gradient Color, Good Formability and Toug	PLA	1 kg	—	£28.30	£28.30	—
Polymaker Panchroma Gradient Matte PLA Filament, 1.75mm, 1kg (2.2lbs), Matte S	PLA	1 kg	★★★★½ 4.6 out of 5 (153 Amazon ratings)	£28.52	£28.52	33% below
iBOSS Rainbow Gradient PLA+ 1.75mm 3D Printer Filament, 1kg (2.2lbs), Silk Rai	PLA+	1 kg	★★★★☆ 4.2 out of 5 (42 Amazon ratings)	£28.56	£28.56	—
no image yet Cookiecad Mermaid (Purple->Blue->Green Rainbow Transition) PLA 3D Printer Fila	PLA	1 kg	—	£28.58	£28.58	—
CHCKX Matte Rainbow PLA 3D Printer Filament, 1KG Spool(2.2lbs) 1.75mm PLA Grad	PLA	1 kg	★★★★½ 4.3 out of 5 (10 Amazon ratings)	£29.25	£29.25	5% below
Cookiecad PLA Filament 1.75mm 1kg Iridescent Rainbow 3D Printer Filament - Pur	PLA	1 kg	★★★★½ 4.6 out of 5 (1,009 Amazon ratings)	£29.28	£29.28	46% below
CHCKX Matte Rainbow PLA 3D Printer Filament, 1KG Spool(2.2lbs) 1.75mm PLA Grad	PLA	1 kg	—	£29.73	£29.73	—
Cookiecad PLA Filament 1.75mm 1kg Iridescent Rainbow 3D Printer Filament - Pin	PLA	1 kg	★★★★½ 4.6 out of 5 (1,008 Amazon ratings)	£29.85	£29.85	44% below
Cookiecad Silk PLA Filament 1.75mm 1kg Dual Color Rainbow 3D Printer Filament	PLA	1 kg	★★★★½ 4.5 out of 5 (14 Amazon ratings)	£29.85	£29.85	45% below
Cookiecad Silk PLA Filament 1.75mm 1kg Rainbow Multicolor 3D Printer Filament	PLA	1 kg	★★★★½ 4.5 out of 5 (14 Amazon ratings)	£29.88	£29.88	45% below
RAMBERY Matte Rainbow Printer Filament Multicolor 3D Printing Accessories Neat	—	1 kg	★★★★½ 4.5 out of 5 (149 Amazon ratings)	£30.07	£30.07	—
Stronghero3D PLA 3D Printer Filament 1.75mm,Candy S3 Silk Rainbow,Multi Color,	PLA	1 kg	★★★★½ 4.4 out of 5 (71 Amazon ratings)	£30.14	£30.14	31% below
RAMBERY 3D Printer PLA Filament Matte Rainbow PLA Filament for Most FDM 3D Pri	PLA	1 kg	★★★★½ 4.5 out of 5 (149 Amazon ratings)	£32.20	£32.20	—
Stronghero3D ABS 3D Printer Filament 1.75mm,Multicolors,Rainbow,1kg(2.2lbs) Ac	ABS	1 kg	★★★★☆ 4.0 out of 5 (88 Amazon ratings)	£33.29	£33.29	23% below
Stronghero3D PLA 3D Printer Filament 1.75mm BRO Rainbow 1kg(2.2lbs) for ender3	PLA	1 kg	★★★★☆ 4.2 out of 5 (109 Amazon ratings)	£33.30	£33.30	—
Polymaker Panchroma Gradient PLA Translucent Pink and Clear 3D Printing Filame	PLA	1 kg	★★★★½ 4.7 out of 5 (255 Amazon ratings)	£34.32	£34.32	22% below
TECSONAR Crystal Rainbow PLA 3D Printer Filament, 1KG Spool(2.2lbs) 1.75mm PLA	PLA	1 kg	★★★★½ 4.3 out of 5 (3 Amazon ratings)	£36.28	£36.28	10% below
LOVOON 3D PLA Filament Color Changing Glitter, Shining 1.75mm PLA Filament, Di	PLA	1.18 kg	★★★★½ 4.5 out of 5 (1,390 Amazon ratings)	£43.39	£36.80	—
no image yet CCTREE PETG 3D Printer Filament 1.75mm, 1kg Spool, Good Layer Adhesion High To	PETG	1 kg	—	£36.96	£36.96	—
LOVOON 3D PLA Filament Color Changing Glitter, Shining, Different Color by Lig	PLA	1.21 kg	★★★★½ 4.5 out of 5 (1,345 Amazon ratings)	£45.05	£37.20	—
TECSONAR TECSONAR Matte Rainbow PLA 3D Printer Filament, 1KG Spool(2.2lbs) 1.7	PLA	1 kg	★★★★☆ 4.2 out of 5 (26 Amazon ratings)	£37.22	£37.22	5% below
TECSONAR Silk Rainbow PLA 3D Printer Filament, 1KG Spool(2.2lbs) 1.75mm PLA Fa	PLA	1 kg	★★★★★ 5.0 out of 5 (3 Amazon ratings)	£37.39	£37.39	6% below
TECSONAR Silk Rainbow PLA 3D Printer Filament, 1KG Spool(2.2lbs) 1.75mm PLA Fa	PLA	1 kg	★★★★½ 4.6 out of 5 (52 Amazon ratings)	£37.73	£37.73	—
Stronghero3D PETG 3D Printer Filament 1.75mm,Silk Rainbow,Multi Color,Solid Op	PETG	1 kg	★★★★½ 4.4 out of 5 (44 Amazon ratings)	£37.75	£37.75	—
AMOLEN PLA 3D Printer Filament, 1.75mm Silk Shiny Red Gold Gradient Filament,	PLA	1 kg	★★★★☆ 4.2 out of 5 (1,334 Amazon ratings)	£38.27	£38.27	9% below
eSUN Silk PLA 3D Printer Filament 1.75mm Three-Color Gradient Shiny Silky Fila	PLA	1 kg	★★★★½ 4.6 out of 5 (47 Amazon ratings)	£38.88	£38.88	10% below
no image yet OVV3D Rainbow PLA Filament 1.75mm, Rainbow PLA Silk PLA 3D Printer Filament Mu	PLA	1 kg	—	£39.17	£39.17	—
no image yet IEMAI PETG Filament 1.75mm, Gradient Purple to White, High-Speed 3D Printer Fi	PETG	1 kg	—	£39.68	£39.68	—
OVVNYXE Tri-Colors Coextruded PLA Filament, 1.75mm, 2.2lbs, Silk PLA, Rainbow	PLA	1 kg	★★★★½ 4.6 out of 5 (800 Amazon ratings)	£39.79	£39.79	—
no image yet eSUN Silk PLA 3D Printer Filament 1.75mm Three-Color Gradient Shiny Silky Fila	PLA	1 kg	—	£40.63	£40.63	—
no image yet PLA Filament 1.75mm, 3D Printer Filament Silk Black Purple Color Changing, Sil	PLA	1 kg	—	£41.50	£41.50	—
RAMBERY Matte Rainbow 3D Printer Filament Muticolor PLA Filament Fast Color Ch	PLA	1 kg	★★★★½ 4.5 out of 5 (149 Amazon ratings)	£41.63	£41.63	5% below
OVVNYXE PLA Filament 1.75mm, Silk Black Green Color Changing, 1kg	PLA	1 kg	★★★★☆ 4.2 out of 5 (118 Amazon ratings)	£41.90	£41.90	—
Kingroon Silk PLA Filament 1.75mm Rainbow 3D Printer Filament PLA Filament 1kg	PLA	1 kg	★★★★½ 4.4 out of 5 (44 Amazon ratings)	£42.46	£42.46	—
no image yet PLA Silk Gradient Rainbow Black Red Gold PLA Filament 1.75mm High Intensity 3D	PLA	1 kg	—	£42.53	£42.53	—
Conjure Matte PLA Filament 1.75mm, Matte Rainbow 1kg,Dopamine Series	PLA	1 kg	★★★★½ 4.5 out of 5 (374 Amazon ratings)	£42.85	£42.85	—
no image yet Akozon 1.75mm Gradient PLA Filament for 3D Printers - Vibrant Silk Colors 200g	PLA	0.2 kg	—	£8.69	£43.45	—
Polymaker Panchroma Gradient PLA Translucent Blue and Clear 3D Printing Filame	PLA	1 kg	★★★★★ 4.8 out of 5 (231 Amazon ratings)	£44.20	£44.20	—
Silk Gradient Rainbow Translucent Blue Green PLA Filament 1.75mm High Intensit	PLA	1 kg	★★★★☆ 4.2 out of 5 (4 Amazon ratings)	£44.21	£44.21	—
Cookiecad Sunset (Pink -> Purple -> Blue Rainbow Transition) PLA 3D Printer Fi	PLA	1 kg	★★★★½ 4.6 out of 5 (1,006 Amazon ratings)	£44.80	£44.80	17% below
no image yet Comgrow - 3D Printer PLA Silk Filament 3D Printer, Rainbow PLA Filament 1.75mm	PLA	1 kg	—	£45.34	£45.34	—
iBOSS Gradient PLA Plus 3D Printer Filament 1.75mm+/-0.02mm, 1kg Spool (2. 2lb	PLA+	1 kg	★★★★½ 4.3 out of 5 (11 Amazon ratings)	£46.60	£46.60	—
no image yet Comgrow - Rainbow PLA Tricolor Silk 3D Printer Filament, 1.75mm, Dimensional A	PLA	1 kg	—	£47.19	£47.19	—
AKLOSIPY .75mm Bright Silk PLA Filament Gradient 3D Printing Consumable for Ar	PLA	0.2 kg	—	£10.26	£51.30	—
Rainbow Gradient PLA Filament 1.75mm for 3D Printers, 200g Silk Effect for and	PLA	0.2 kg	★☆☆☆☆ 1.0 out of 5 (1 Amazon ratings)	£10.59	£52.95	7% below
no image yet OVAQUIXI Silk PLA Filament, Fast Gradient Color Change 1.75mm 3D Printing Fila	PLA	0.2 kg	—	£10.61	£53.05	—
Silk PLA Filament 1.75mm, Gradient Fast Color Change, Shiny, 200g Spool, Compa	PLA	0.2 kg	★★½☆☆ 2.7 out of 5 (7 Amazon ratings)	£10.64	£53.20	6% below
no image yet lvifloae 3D Printer Filament 1.75mm, 3D Printer PLA Filament Rainbow Gradient	PLA	0.2 kg	—	£12.69	£63.45	—
Hapivida PLA Filament 3D Printer, Fast Color Gradient Change Multicolored 1.75	PLA	0.2 kg	—	£13.19	£65.95	6% below
no image yet Glow in The Dark Gradient Rainbow 1.75mm PLA Filament, Luminous Rainbow Vibran	PLA	0.25 kg	—	£23.60	£94.40	—
1.75mm 3D Printer PLA Filament Rainbow Gradient Color Printer Filament for 200	PLA	0.2 kg	—	£19.59	£97.95	—
IEMAI PETG Filament 1.75mm 1Kg, Glitter Transparent 3D Printer Filament PETG G	PETG	1 kg	★★★★½ 4.3 out of 5 (38 Amazon ratings)	—	—	—

Rainbow & gradient filament by brand

Guides

• Bed adhesion: what actually works
  Glue sticks, hairspray, rafts, brims and expensive surfaces — an honest ranking of what fixes prints coming loose, starting with the free fix that solves most cases.
• Do you need a filament dryer?
  Wet filament is real and ruins prints, but a dedicated dryer is not the only answer. How to tell if moisture is your problem, and what to do about it.
• Filament storage: dry boxes, vacuum bags and desiccant
  Keeping filament dry is cheaper than drying it out. What actually works, what desiccant to use, and why the little sachet in the bag is already spent.
• First layer calibration, properly
  Nearly every adhesion problem and half of all print failures start in the first layer. How to set Z offset by eye, and what a good first layer actually looks like.

Best-selling Filament by year — which actually sold best, going back several years, ranked by sales position rather than opinion.