Cat eye polish carries fine metallic particles suspended in gel. A magnet held near the wet surface pulls them into a line, and the lamp freezes them there. That is the entire trick, and it explains every rule that follows.
Pale shades do not have enough contrast between the particles and the base, so the band reads as ordinary shimmer. Navy, emerald, burgundy and black are where the effect actually separates.
And the magnet has to be held at an angle for a good ten seconds. Rushed, you get a smudge rather than a line.
Where to put the band
Diagonal beats straight across, every time. A straight band sitting at the same height on all ten nails starts to look printed, where a diagonal one reads as light catching the nail. Ask specifically, because the default in most salons is straight.
Emerald diagonal
Deep green with a bright band running corner to corner. The highest-contrast version there is.
Navy diagonal
The most requested cat eye colour and the easiest to wear daily.
Burgundy velvet
Magnet held flat so the shimmer gathers into a cloud rather than a line.
Black with a silver band
Maximum contrast. Reads almost like a blade of light.
Bronze on brown
Warm metallic band over espresso. The autumn version.
Purple galaxy
Deep violet with the band worked into a curve rather than a line.
Teal shift
Blue-green that shifts colour as the hand moves.
Forest velvet
Deep green worked flat. Looks like crushed fabric.
Taupe velvet
The most wearable velvet. Neutral with a soft shimmer cloud.
Cat eye French tip
The magnetic effect confined to the free edge only.
Double band
Two lines pulled with the magnet at two angles.
Cat eye accent
Two magnetic nails, the rest in a matching solid.
Wine on almond
Deep red with a diagonal band on a medium almond.
Charcoal shimmer
Deep grey with a soft band. The quietest option here.
Rose gold cat eye
Warm pink metallic. Flatters more skin tones than silver.
Cat eye over chrome
Magnetic gel layered over a chrome base for real depth.
Blue to purple shift
A duochrome magnetic that changes with the angle.
Cat eye ombre
The band fading out towards the cuticle.
Copper on black
Warm band on a very dark base. Strong in low light.
Cat eye on toes
Lasts four to six weeks because toes take no impact.
Matte cat eye
Matte topcoat over the magnetic layer. Softer and very unusual.
For the rest of the finish family, chrome nails and the gel nails guide cover what else needs a lamp.
Questions people actually ask
What are cat eye nails?
Gel polish with fine magnetic particles suspended in it. A magnet pulls the particles into a band before the gel is cured under a lamp.
Can you do cat eye nails at home?
Only with gel and a lamp. Regular polish has no metal particles to move, so there is no non-gel version of the effect.
Which cat eye colors work best?
Navy, emerald, burgundy and black. Pale shades lack the contrast for the band to separate, so they read as ordinary shimmer.
What is the difference between cat eye and velvet nails?
The same product and a different magnet angle. Held at an angle it makes a line, held flat it makes a soft cloud that reads like fabric.
