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Rainbow & gradient filament, ranked by £/kg — page 2

Filament whose colour changes gradually along the spool, so a tall print fades from one colour to the next. Ranked by cost per kilogram.

Silk, dual colour and gradient filament explained →

Best £/kg Biggest discount Lowest price Best rated Newest

All (124) On offer now (22)

By material: PLA (913) PETG (283) PLA+ (221) TPU (74) ABS (40) ASA (31) Nylon (18) PETG-CF (12) PC (7)

By finish: Silk (280) Matte (174) Dual & triple colour (150) Rainbow & gradient (124) Translucent (137) Glow in the dark (34) Sparkle & glitter (29) Marble (16) Wood (21) Colour-changing (3)

124 listings tracked, 22 on offer right now.

Product	Material	Weight	Rating	Price	Per kg	Deal
iSANMATE Matte PLA Filament 1.75mm, Rainbow 30-300mm/s 1KG for Bambu Lab	PLA	1 kg	4.5 out of 5 (29 Amazon ratings)	£15.99	£15.99	20% below
Creality Hyper PLA Filament 1.75mm, 30-600mm/s High Speed 3D Printer Filament,	PLA	4 kg	—	£66.63	£16.66	—
RepRapper Glow in The Dark PLA Filament 1.75mm (4×250g) – 3D Printer Filament	PLA	1 kg	—	£16.99	£16.99	—
EONO Glow PLA Filament 1.75mm 4x250g, Green Blue Yellow Rainbow 3D	PLA	1 kg	4.0 out of 5 (27 Amazon ratings)	£16.99	£16.99	15% below
ERYONE Matte PLA Filament 1.75mm, +/-0.03mm, 1kg (2.2lbs)/Spool, Multicoloured	PLA	1 kg	4.3 out of 5 (2,777 Amazon ratings)	£16.99	£16.99	15% below
ERYONE Matte PLA Filament 1.75mm, +/-0.03mm, 1kg (2.2lbs)/Spool, Multicoloured	PLA	1 kg	4.3 out of 5 (2,777 Amazon ratings)	£16.99	£16.99	15% below
SUNLU 250G*8 Silk Filament Bundle, PLA+ Rainbow Filament Multicolor, Fast Colo	PLA+	2 kg	4.8 out of 5 (47 Amazon ratings)	£34.99	£17.50	12% below
eSUN Matte Rainbow PLA Filament 1.75mm 1KG, Matte Multicolored PLA, Ocean	PLA	1 kg	4.5 out of 5 (4,093 Amazon ratings)	£17.63	£17.63	10% below
RepRapper Glow in The Dark Rainbow PLA Filament 1.75mm – Phosphorescent Multic	PLA	1 kg	—	£17.66	£17.66	Warehouse
Flashforge PLA Crystal Rainbow 3D Printer Filament 1.75mm, 3D Printing Materia	PLA	1 kg	—	£17.84	£17.84	—
Flashforge PLA Crystal Rainbow 3D Printer Filament 1.75mm, 3D Printing Materia	PLA	1 kg	—	£17.84	£17.84	—
iSANMATE Transparent Glitter PLA Filament 1.75 mm, Clear Gradient Blue Purple	PLA	1 kg	4.2 out of 5 (687 Amazon ratings)	£17.99	£17.99	10% below
RepRapper Glow in The Dark PLA Filament 1.75mm (4×250g) – High-Brightness Lumi	PLA	1 kg	4.2 out of 5 (1,686 Amazon ratings)	£18.10	£18.10	Warehouse
Stronghero3D PLA 3D Printer Filament 1.75mm EX51 Rainbow 1kg(2.2lbs) for ender	PLA	1 kg	4.1 out of 5 (3,521 Amazon ratings)	£18.14	£18.14	17% below
eSUN Matte Rainbow PLA Filament 1KG, Matte Multicolored PLA, Sunrise	PLA	1 kg	4.5 out of 5 (4,093 Amazon ratings)	£18.56	£18.56	15% below
EONO Rainbow Silk PLA Filament 1.75mm 4x250g, Multicolor Filament	PLA	1 kg	4.0 out of 5 (5 Amazon ratings)	£18.69	£18.69	15% below
Stronghero3D PLA 3D Printer Filament 1.75mm EX31 Rainbow 1kg(2.2lbs) for ender	PLA	1 kg	4.1 out of 5 (3,521 Amazon ratings)	£18.75	£18.75	5% below
iSANMATE Triple Color Silk PLA Filament 1.75mm, 3D Printer Filament Set, Tri-C	PLA	1 kg	4.1 out of 5 (116 Amazon ratings)	£19.99	£19.99	13% below
Conjure PETG Filament 1.75mm, Rainbow Filament,1kg PETG Cherry Pink	PETG	1 kg	—	£19.99	£19.99	—
AMOLEN Silk PLA Gradient 3D Printing Filament, 1KG Spool 1.75mm Silk Shiny Red	PLA	1 kg	4.3 out of 5 (49 Amazon ratings)	£21.00	£21.00	—
iSANMATE Glow in The Dark PLA Filament 1.75mm, Fluorescent Green, Blue, Blue-G	PLA	1 kg	4.2 out of 5 (687 Amazon ratings)	£21.99	£21.99	—
Kingroon Glow-in-the-Dark Rainbow Tints 3D Printer Filament PLA, Multi Colour	PLA	1 kg	4.6 out of 5 (45 Amazon ratings)	£22.09	£22.09	15% below
RAMBERY Matte Rainbow PLA 3D Printer Filament Bundle, 10 Colors Total 10kg, 1.	PLA	10 kg	4.9 out of 5 (11 Amazon ratings)	£228.13	£22.81	—
ERYONE PLA Filament Bundle,1,75 mm 3D Printer Filament +/- 0,03mm,Multicolor P	PLA	1 kg	4.3 out of 5 (851 Amazon ratings)	£22.99	£22.99	—
LOVOON 3D Printer Filament, 1.75mm Rainbow Color Green-Red-Blue, 2.2lbs/Spool,	PLA	1 kg	—	£23.26	£23.31	—
Polymaker HT-PLA Filament 1.75mm Gradient Rainbow, High Temp PLA for 3D Printi	PLA	1 kg	4.4 out of 5 (8 Amazon ratings)	£23.56	£23.56	22% below
LANDU Silk PLA 3D Printer Filament Bundle, Shiny Tri Color Filament 1.75mm Pac	PLA	0.8 kg	—	£18.99	£23.74	—
ERYONE TPU Filament 1.75mm, 3D Printer Filament,Flexible 95A TPU, +/-0.03mm, 0	TPU	0.5 kg	—	£11.89	£23.78	—
AMOLEN Silk PLA 3D Printer Filament, Multicolor 1.75mm PLA Shiny Gradient Fila	PLA	1 kg	4.6 out of 5 (11 Amazon ratings)	£24.59	£24.59	48% below
iBOSS Silk Macaron Rainbow PLA+ 3D Printer Filament 1.75 mm +/-0.02 mm, 1 kg (	PLA+	1 kg	4.6 out of 5 (26 Amazon ratings)	£25.05	£25.05	—
AMOLEN Silk PLA 3D Printer Filament Bundle, Multicolor Rainbow PLA 1.75mm, Shi	PLA	0.8 kg	—	£21.00	£26.25	—
iBOSS Gradient PLA Plus 3D Printer Filament 1.75 mm +/-0.02 mm, 1 kg Spool (2.	PLA+	1 kg	4.0 out of 5 (26 Amazon ratings)	£26.43	£26.43	—
iBOSS Matte PLA+ Filament 1.75 mm, Two-Tone Gradient 1 kg Spool (2.2 lbs) 3D P	PLA+	1 kg	—	£27.18	£27.18	—
IEMAI PETG Filament 1.75mm 1Kg, Luminous Rainbow PETG 3D Printer Filament, Glo	PETG	1 kg	3.4 out of 5 (29 Amazon ratings)	£27.64	£27.64	—
iBOSS Rainbow Transparent PLA+ Filament 1.8mm, Accuracy ±0.2mm, 1kg Spool (2.2	PLA+	1 kg	4.4 out of 5 (9 Amazon ratings)	£27.93	£27.93	6% below
RAMBERY 4 Colors Rainbow Silk PLA Filament Bundle Fast Color Change 3D PLA Fil	PLA	4 kg	4.5 out of 5 (149 Amazon ratings)	£112.41	£28.10	—
Cookiecad Mermaid (Purple->Blue->Green Rainbow Transition) PLA 3D Printer Fila	PLA	1 kg	—	£28.58	£28.58	—
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	4.5 out of 5 (1,345 Amazon ratings)	£45.05	£37.20	—
TECSONAR Silk Rainbow PLA 3D Printer Filament, 1KG Spool(2.2lbs) 1.75mm PLA Fa	PLA	1 kg	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	—	£37.76	£37.76	—
RAMBERY 3D Printer Filament Bundle Silk Shiny PLA Filament Fast Color Change T	PLA	1 kg	—	£39.24	£39.24	—
TECSONAR Crystal Rainbow PLA 3D Printer Filament, 1KG Spool(2.2lbs) 1.75mm PLA	PLA	1 kg	—	£39.44	£39.44	—
IEMAI PETG Filament 1.75mm, Gradient Purple to White, High-Speed 3D Printer Fi	PETG	1 kg	—	£39.68	£39.68	—
eSUN Silk PLA 3D Printer Filament 1.75mm Three-Color Gradient Shiny Silky Fila	PLA	1 kg	—	£40.63	£40.63	—
HELLO3D Glow in The Dark Luminous Multicolor Rainbow PLA 3D Filament, Multicol	PLA	1 kg	—	£41.42	£41.50	—
PLA Filament 1.75mm, 3D Printer Filament Silk Black Purple Color Changing, Sil	PLA	1 kg	—	£41.50	£41.50	—
eSUN Silk PLA 3D Printer Filament 1.75mm Three-Color Gradient Shiny Silky Fila	PLA	1 kg	—	£42.39	£42.39	—
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	—
RAMBERY 3D Printer Filament Bundle Silk Shiny PLA Filament Fast Color Change T	PLA	1 kg	—	£44.26	£44.26	—
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	4.3 out of 5 (11 Amazon ratings)	£46.60	£46.60	—
Comgrow - Rainbow PLA Tricolor Silk 3D Printer Filament, 1.75mm, Dimensional A	PLA	1 kg	—	£47.19	£47.19	—
3D Printer Filament Bundle, Glow in The Dark Filament Multicolor, Green, BlueO	PLA	1 kg	—	£48.69	£48.69	—
Silk Shiny Rainbow PLA Filament,Multicolored Fast Color Change Rainbow 3D Prin	PLA	0.8 kg	—	£41.30	£51.62	—
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
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	2.7 out of 5 (7 Amazon ratings)	£10.64	£53.20	6% below

Rainbow & gradient filament by brand

All brands iSANMATE (25) ERYONE (11) LANDU (9) IEMAI (6) iBOSS (5) NEOTRY (5) RepRapper (5) SUNLU (5) eSUN (4) Kingroon (4) AMOLEN (3) Stronghero3D (3) Creality (2) FLASHFORGE (2) Polymaker (2)

Guides

Silk filament: how to get the shiny finish
Silk PLA gives prints a metallic sheen, and dual or triple colour silk shifts colour as it turns. What it is, how to print it, and where it falls short.
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.

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