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

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 →

Best £/kg Biggest discount Lowest price Best rated Newest

All (159) On offer now (44)

By material:PLA (122)PETG (19)PLA+ (15)ABS (1)TPU (1)

By finish:All finishes Silk (293)Matte (283)Dual & triple colour (156)Rainbow & gradient (159)Translucent (140)Glow in the dark (34)Sparkle & glitter (51)Marble (28)Wood (15)Colour-changing (2)

By pack:Any pack size Single spools (159)Bulk & multi-pack (13)

By weight:Under 1 kg (10)1 kg (149)

By colour:Red (4)Yellow (1)Green (3)Blue (1)Purple (1)Pink (3)Brown (1)Beige & natural (1)Transparent (16)

Condition:Any condition New (159)Amazon Warehouse (used) (5)

Rating:4.5 stars & up (55)4 stars & up (103)3.5 stars & up (108)

159 listings tracked, 44 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
iSANMATE Matte Tri Colors PLA Filament 1.75mm, 3-in-1 Color Rainbow Filament,	PLA	1 kg	3.9 out of 5 (16 Amazon ratings)	£15.99	£15.99	—
Kingroon Silk Rainbow 3D Printer Filament PLA, Multi Colour PLA Filament, Dime	PLA	1 kg	4.6 out of 5 (49 Amazon ratings)	£15.99	£15.99	—
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)	£15.99	£15.99	20% below
iSANMATE Matte PLA+ Filament 1.75mm, Rainbow Multicolor Change 3D Printer Fila	PLA+	1 kg	4.7 out of 5 (13 Amazon ratings)	£15.99	£15.99	44% below
Kingroon Silk Rainbow 3D Printer Filament PLA, Multi Colour PLA Filament, Dime	PLA	1 kg	4.6 out of 5 (49 Amazon ratings)	£15.99	£15.99	—
Kingroon Silk Rainbow 3D Printer Filament PLA, Multi Colour PLA Filament, Dime	PLA	1 kg	4.6 out of 5 (49 Amazon ratings)	£15.99	£15.99	—
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
LANDU Silk PLA 3D Printer Filament Multicolor Rainbow PLA Filament 1.75mm Grad	PLA	1 kg	—	£16.99	£16.99	—
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
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
RAMBERY Matte Rainbow 3D Printer Filament 1.75mm Matte PLA Filament for 3D Pri	PLA	1 kg	4.9 out of 5 (11 Amazon ratings)	£19.46	£19.46	54% below
eSUN PLA Glow in the Dark Rainbow Filament,1KG, Luminous Rainbow Multicolor	PLA	1 kg	4.0 out of 5 (436 Amazon ratings)	£19.48	£19.48	5% below
Conjure PETG Filament 1.75mm, Rainbow Filament,1kg PETG Cherry Pink	PETG	1 kg	—	£19.99	£19.99	—
Polymaker Panchroma Gradient Matte PLA Filament, Multicolor Gradient Matte Pas	PLA	1 kg	5.0 out of 5 (2 Amazon ratings)	£20.78	£20.78	48% below
Polymaker Panchroma Gradient Silk Rainbow PLA 3D Printing Filament 1.75mm 1kg,	PLA	1 kg	4.4 out of 5 (40 Amazon ratings)	£20.96	£20.96	50% below
RepRapper Glow in The Dark Rainbow PLA Filament 1.75mm – Phosphorescent Multic	PLA	1 kg	4.2 out of 5 (1,779 Amazon ratings)	£20.99	£20.99	—
Flashforge PLA Crystal Rainbow 3D Printer Filament 1.75mm, 3D Printing Materia	PLA	1 kg	—	£20.99	£20.99	—
Flashforge PLA Crystal Rainbow 3D Printer Filament 1.75mm, 3D Printing Materia	PLA	1 kg	—	£20.99	£20.99	—
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	—
RAMBERY Glow in The Dark Rainbow 3D Printer Filament Luminous PLA Filament 1.7	PLA	1 kg	—	£21.27	£21.27	—
AMOLEN PLA Filament, Silk Shiny Black Purple, 1.75mm, 1kg (2.2lbs), Color Chan	PLA	1 kg	3.7 out of 5 (5 Amazon ratings)	£22.00	£22.00	53% below
AMOLEN 3D Printer Filament, Galaxy Gradient Color Changing with Light, 1.75mm,	PLA	1 kg	2.3 out of 5 (6 Amazon ratings)	£22.00	£22.00	52% below
AMOLEN Silk PLA 3D Printer Filament, Shiny Multicolor Berry Pop Rainbow PLA, 1	PLA	1 kg	4.2 out of 5 (24 Amazon ratings)	£22.00	£22.00	50% below
AMOLEN Silk PLA 3D Printer Filament, Multicolor Rainbow, 1.75mm, 2.2lbs, Polyl	PLA	1 kg	4.0 out of 5 (16 Amazon ratings)	£22.00	£22.04	52% below
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
Ataraxia Art Rainbow 3D Printer Filament, PLA, 1.75mm, 1kg (2.2lb), Multicolor	PLA+	1 kg	4.2 out of 5 (47 Amazon ratings)	£22.79	£22.79	49% below
LOVOON 3D Printer Filament, 1.75mm Rainbow Color Green-Red-Blue, 2.2lbs/Spool,	PLA	1 kg	—	£23.26	£23.31	—
Stronghero3D PLA 3D Printer Filament 1.75mm Vertigo Galaxy Rainbow Multicolors	PLA	1 kg	4.2 out of 5 (3,557 Amazon ratings)	£23.43	£23.43	—
AMOLEN Silk PLA 3D Printer Filament, Shiny Multicolor Nebula Ribbon Rainbow PL	PLA	1 kg	3.7 out of 5 (8 Amazon ratings)	£23.48	£23.48	48% below
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
ERYONE TPU Filament 1.75mm, 3D Printer Filament,Flexible 95A TPU, +/-0.03mm, 0	TPU	0.5 kg	—	£11.89	£23.78	—
Conjure PLA Glow Filament 1.75mm, Rainbow Multicolor,1kg Luminous Glowworm	PLA	1 kg	3.8 out of 5 (110 Amazon ratings)	£23.99	£23.99	—
AMOLEN Silk PLA 3D Printer Filament, Shiny Multicolor Kingfisher Rainbow PLA F	PLA	1 kg	4.4 out of 5 (211 Amazon ratings)	£24.32	£24.32	47% below
iBOSS Gradient PLA Plus 3D Printer Filament 1.75 +/- 0.02 mm, 1 kg Spool (2.2	PLA+	1 kg	4.0 out of 5 (21 Amazon ratings)	£24.36	£24.36	5% 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)	£24.52	£24.52	—
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
Semdon 3D Printer Filament PLA Silk 1kg 1.75mm Rainbow Candy	PLA	1 kg	4.6 out of 5 (21 Amazon ratings)	£24.77	£24.77	41% below
AMOLEN PLA 3D Printer Filament PLA Filament 1.75mm,Color Change Multicolor Fil	PLA	1 kg	4.4 out of 5 (159 Amazon ratings)	£24.98	£24.98	47% below
Polymaker HT-PLA Filament 1.75mm Gradient Tropical, High Temp PLA for 3D Print	PLA	1 kg	4.8 out of 5 (10 Amazon ratings)	£24.99	£24.99	13% below
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 Rainbow Transparent PLA+ Filament 1.8mm, Accuracy ±0.2mm, 1kg Spool (2.2	PLA+	1 kg	4.4 out of 5 (9 Amazon ratings)	£26.52	£26.52	11% below
iBOSS Cosmic Rainbow 3D PLA Filament 1.75 mm +/- 0.02 mm, 1 kg Silk Cosmic Rai	PLA+	1 kg	—	£26.55	£26.55	—
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	—
iBOSS Macaron Rainbow PLA+ Silk 3D Printer Filament, 1.75 mm, 1 kg (1000g), 32	PLA+	1 kg	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	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	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	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	—
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	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	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	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	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	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	4.5 out of 5 (149 Amazon ratings)	£30.07	£30.07	—

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.