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Rainbow & gradient filament, ranked by £/kg

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 →

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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
IEMAI PETG Filament 1.75mm 10Kg, Gradient Translucent PETG 3D Printer Filament	PETG	10 kg	4.6 out of 5 (223 Amazon ratings)	£84.99	£8.50	15% below
Sovol 3D Printer Filament Matte Rainbow PLA 1.75mm 1kg, Bright Yellow	PLA	1 kg	4.5 out of 5 (570 Amazon ratings)	£9.38	£9.38	27% below
IEMAI PETG Filament 1.75mm 2Kg, Gradient Blue Purple/Blue Green Translucent PE	PETG	2 kg	4.6 out of 5 (220 Amazon ratings)	£19.54	£9.77	24% below
Akozon 1.75mm 3D Printer PLA Filament Gradient Color Printer Filament for 200g	PLA	1 kg	—	£9.99	£9.99	8% below
NEOTRY Silk Tri Colour PLA Filament 1.75mm 1kg, Multicolor 3D Printer Filament	PLA	1 kg	4.4 out of 5 (66 Amazon ratings)	£10.83	£10.83	Warehouse
LANDU Silk Tri-Color PLA Filament 1.75mm 2Kg, Triple Color Silk PLA Filament,	PLA	2 kg	—	£22.59	£11.30	15% below
ERYONE Ultra Silk PLA Filament, Silky Glossy Finish Filament,Fast Color Change	PLA	1 kg	4.2 out of 5 (2,604 Amazon ratings)	£11.47	£11.47	42% below
Creality 3D Printer Filament 1.75mm, Rainbow Upgraded PLA+ Filament Strong Tou	PLA+	2 kg	4.6 out of 5 (2,042 Amazon ratings)	£23.73	£11.87	Warehouse
IEMAI PETG Filament 1.75mm 1Kg, Transparent Gradient Blue Purple PETG 3D Print	PETG	1 kg	4.5 out of 5 (546 Amazon ratings)	£11.89	£11.89	15% below
ERYONE High Speed Translucent Gradient PETG Filament 1.75mm +/- 0.03mm, 30-600	PETG	1 kg	4.3 out of 5 (3 Amazon ratings)	£11.89	£11.89	30% below
Sovol 3D Printer PETG Filament 1.75mm, Gradient Multicolors 3D Printing Filame	PETG	1 kg	4.4 out of 5 (929 Amazon ratings)	£11.89	£11.89	10% below
LANDU Silk PLA 3D Printer Filament Multicolor Rainbow PLA Filament 1.75mm Grad	PLA	1 kg	—	£11.97	£11.97	—
Reprapper PLA Filament 1.75mm 1KG – Green/Blue/Rose Red Tri Colour Silk PLA Fi	PLA	1 kg	—	£11.99	£11.99	—
NEOTRY Silk Tri Colour PLA Filament 1.75mm 1kg, Multicolor 3D Printer Filament	PLA	1 kg	4.4 out of 5 (66 Amazon ratings)	£11.99	£11.99	25% below
RepRapper Forest Rainbow Silk PLA Filament 1.75mm, Shiny Gradient Multicolor 3	PLA	1 kg	4.1 out of 5 (1,682 Amazon ratings)	£12.74	£12.74	15% below
LANDU Silk PLA Filament 1.75mm 3D Printer Multicolor Filament Gradient Color C	PLA	1 kg	5.0 out of 5 (2 Amazon ratings)	£12.74	£12.74	10% below
LANDU Silk Candy Blue Silver 1.75mm 3D Printer Multicolor Filament Gradient Co	PLA	1 kg	5.0 out of 5 (2 Amazon ratings)	£12.74	£12.74	15% below
Conjure Matte PLA Filament 1.75mm, Matte Rainbow 1kg	PLA	1 kg	4.4 out of 5 (361 Amazon ratings)	£12.84	£12.84	35% below
iSANMATE Transparent Flashing PLA Filament 1.75 mm, Clear Gradient Multicolour	PLA	1 kg	3.9 out of 5 (51 Amazon ratings)	£12.99	£12.99	35% below
iSANMATE PETG Transparent Glitter Filament, 1.75 mm PETG Clear Gradient Rainbo	PETG	1 kg	5.0 out of 5 (1 Amazon ratings)	£12.99	£12.99	18% below
iSANMATE PLA Translucent Filament 1.75 mm, Translucent Gradient Filament, Dime	PLA	1 kg	4.8 out of 5 (11 Amazon ratings)	£12.99	£12.99	27% below
iSANMATE PLA Translucent Filament 1.75 mm, Translucent Gradient Filament, Dime	PLA	1 kg	4.4 out of 5 (3 Amazon ratings)	£12.99	£12.99	13% below
iSANMATE PLA Transparent Filament 1.75 mm, Transparent Gradient Rainbow Colour	PLA	1 kg	5.0 out of 5 (2 Amazon ratings)	£12.99	£12.99	13% below
iSANMATE PETG Transparent Glitter Filament, 1.75 mm PETG Clear Gradient Rainbo	PETG	1 kg	5.0 out of 5 (1 Amazon ratings)	£12.99	£12.99	—
iSANMATE PLA Translucent Filament 1.75 mm, Translucent Gradient Blue Purple Fi	PLA	1 kg	4.6 out of 5 (6 Amazon ratings)	£12.99	£12.99	18% below
iSANMATE PETG Transparent Glitter Filament, 1.75 mm PETG Clear Gradient Rainbo	PETG	1 kg	4.1 out of 5 (8 Amazon ratings)	£12.99	£12.99	18% below
YUANEANG Rainbow PLA 3D Printer Filament, 1KG Spool(2.2lbs) 1.75mm 3D Printing	PLA	1 kg	4.1 out of 5 (455 Amazon ratings)	£12.99	£12.99	7% below
Sovol 3D Printer Filament Matte Rainbow PLA 1.75mm 1kg, Matte Cabbage	PLA	1 kg	4.5 out of 5 (570 Amazon ratings)	£13.06	£13.06	Warehouse
IEMAI 3D Printer Filament, PETG Filament 1.75mm Translucent,Gradient Color PET	PETG	1 kg	4.3 out of 5 (456 Amazon ratings)	£13.30	£13.30	15% below
LANDU Silk PLA 3D Printer Filament Multicolor Rainbow PLA Filament 1.75mm Grad	PLA	1 kg	4.5 out of 5 (4 Amazon ratings)	£13.51	£13.51	9% below
ERYONE Ultra Silk PLA Filament,Silky Glossy Finish Filament, Fast Color Change	PLA	1 kg	4.2 out of 5 (2,606 Amazon ratings)	£13.59	£13.59	32% below
LANDU Silk Tri-Color PLA Filament 1.75mm 1Kg,Triple Color Silk PLA Filament, S	PLA	1 kg	—	£13.59	£13.59	15% below
LANDU Silk Tri-Color PLA Filament 1.75mm 1Kg,Triple Color Silk PLA Filament, S	PLA	1 kg	—	£13.59	£13.59	10% below
LANDU Silk Tri-Color PLA Filament 1.75mm 1Kg, Triple Color Silk PLA Filament,	PLA	1 kg	4.6 out of 5 (204 Amazon ratings)	£13.92	£13.92	Warehouse
ERYONE Matte PLA Filament 1.75mm, +/-0.03mm, 1kg (2.2lbs)/Spool, Multicoloured	PLA	1 kg	4.3 out of 5 (2,776 Amazon ratings)	£13.99	£13.99	30% below
iSANMATE Matte Tri Colors PLA Filament 1.75mm, 3-in-1 Color Rainbow Filament,	PLA	1 kg	4.5 out of 5 (21 Amazon ratings)	£13.99	£13.99	6% below
Kingroon Silk Rainbow 3D Printer Filament PLA, Multi Colour PLA Filament, Dime	PLA	1 kg	—	£13.99	£13.99	—
iSANMATE Matte Tri Colors PLA Filament 1.75mm, 3-in-1 Color Rainbow Filament,	PLA	1 kg	3.9 out of 5 (4 Amazon ratings)	£14.07	£14.07	Warehouse
Kingroon Silk Rainbow 3D Printer Filament PLA, Multi Colour PLA Filament, Dime	PLA	1 kg	—	£14.99	£14.99	—
iSANMATE Matte PLA+ Filament 1.75mm, Rainbow Multicolor Change 3D Printer Fila	PLA+	1 kg	4.7 out of 5 (13 Amazon ratings)	£14.99	£14.99	47% below
NEOTRY Silk Dual Colour PLA Filament 1.75mm 1kg, Multicolor 3D Printer Filamen	PLA	1 kg	4.4 out of 5 (66 Amazon ratings)	£14.99	£14.99	11% below
NEOTRY Silk Dual Colour PLA Filament 1.75mm 1kg, Multicolor 3D Printer Filamen	PLA	1 kg	4.4 out of 5 (66 Amazon ratings)	£14.99	£14.99	11% below
NEOTRY Silk Dual Colour PLA Filament 1.75mm 1kg, Multicolor 3D Printer Filamen	PLA	1 kg	4.4 out of 5 (66 Amazon ratings)	£14.99	£14.99	11% below
iSANMATE High-Speed PETG Translucent Filament 1.75 mm, PETG Transparent Gradie	PETG	1 kg	—	£14.99	£14.99	—
iSANMATE High-Speed PETG Translucent Filament 1.75 mm, PETG Transparent Gradie	PETG	1 kg	—	£14.99	£14.99	—
iSANMATE High-Speed PETG Translucent Filament 1.75 mm, PETG Transparent Gradie	PETG	1 kg	—	£14.99	£14.99	—
iSANMATE High-Speed PETG Translucent Filament 1.75 mm, PETG Transparent Gradie	PETG	1 kg	—	£14.99	£14.99	—
iSANMATE High-Speed PETG Translucent Filament 1.75 mm, PETG Transparent Gradie	PETG	1 kg	—	£14.99	£14.99	—
iSANMATE High-Speed PETG Translucent Filament 1.75 mm, PETG Transparent Gradie	PETG	1 kg	—	£14.99	£14.99	—
iSANMATE High-Speed PETG Translucent Filament 1.75 mm, PETG Transparent Gradie	PETG	1 kg	—	£14.99	£14.99	—
iSANMATE High-Speed PETG Translucent Filament 1.75 mm, PETG Transparent Gradie	PETG	1 kg	—	£14.99	£14.99	—
iSANMATE High-Speed PETG Translucent Filament 1.75 mm, PETG Transparent Gradie	PETG	1 kg	—	£14.99	£14.99	—
SUNLU Dual Color Matte PLA Filament 1.75mm, Matte 3D Printer Filament with 2 C	PLA	1 kg	4.5 out of 5 (3,659 Amazon ratings)	£15.19	£15.19	10% below
SUNLU Dual Color Matte PLA Filament 1.75mm, Matte 3D Printer Filament with 2 C	PLA	1 kg	4.5 out of 5 (3,690 Amazon ratings)	£15.19	£15.19	10% below
SUNLU Dual Color Matte PLA Filament 1.75mm, Matte 3D Printer Filament with 2 C	PLA	1 kg	4.5 out of 5 (3,663 Amazon ratings)	£15.19	£15.19	10% below
ERYONE Ultra Silk PLA Filament, Silky Glossy Finish Filament,Fast Color Change	PLA	1 kg	4.2 out of 5 (2,606 Amazon ratings)	£15.29	£15.29	30% below
Kingroon Silk Rainbow 3D Printer Filament PLA, Multi Colour PLA Filament, Dime	PLA	1 kg	—	£15.29	£15.29	—
SUNLU Dual Color Matte PLA Filament 1.75mm, Matte 3D Printer Filament with 2 C	PLA	1 kg	4.5 out of 5 (3,663 Amazon ratings)	£15.29	£15.29	—
ERYONE Matte PLA Filament 1.75mm, 3D Printer Rainbow Filament, +/-0.03mm, 1kg	PLA	1 kg	4.3 out of 5 (2,777 Amazon ratings)	£15.95	£15.95	20% below
ERYONE Matte PLA Filament 1.75mm, +/-0.03mm, 1kg (2.2lbs)/Spool, Multicoloured	PLA	1 kg	4.3 out of 5 (2,775 Amazon ratings)	£15.99	£15.99	19% below

Filament by brand

SUNLU (399) ELEGOO (215) eSUN (129) ERYONE (80) Polymaker (63) Deeplee (61) TINMORRY (52) iSANMATE (43) Creality (39) ANYCUBIC (38) TECBEARS (36) Kingroon (35) OVERTURE (32) NextShapes (23) IEMAI (22) LANDU (21) R3D (21) FLASHFORGE (19) iBOSS (18) Winkle (18) BAMBULAB (17) JAYO (17) SainSmart (13) AMOLEN (10) NEOTRY (10) Stronghero3D (9) XINGTONGZHILIAN (9) extrudr (8) Inslogic (8) Prusament (8) RepRapper (8)

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.