Top Coats

Diamond Shine Top Coat

4.7

Rated 4.7 out of 5 stars

167

ADDS DIMENSION

Clear bottle of LONDONTOWN Diamond Shine Top Coat nail polish with a black cap, labeled in white text. Infused with diamond-dusted particles, this top coat ensures extended wear and adds irresistible dimension to your manicure.

A close-up of fingers adorned with LONDONTOWN&

Fingers with short, neatly manicured nails painted in a glossy, light brown color and finished with LONDONTOWN&

4.7

Rated 4.7 out of 5 stars

167

Top Coats

Diamond Shine Top Coat

For diamond-dusted dimension and extended wear

Tax included.

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Product Details

A sheer, shimmering top coat infused with iridescence. Wear it alone over bare nails for a diamond-dusted sheen or over any color to add dimension to your manicure.

Formulated without: Formaldehyde, Toulene, DBP, Camphor, Ethyl Tosylamide, Acetone, Xylene, TPHP, or Formaldehyde Resin
Vegan, cruelty-free

12 ml / .4 fl oz

How to use

Apply as the final step, after your base coat and 1-2 coats of lakur have set for about 2 minutes.
Apply a thin, even layer over the lakur.
Follow with Accelerating Drying Oil to speed up dry time.
Refresh with a fresh layer at the first signs of wear to extend the mani.

Ingredients

Ethyl Acetate, Butyl Acetate, Nitrocellulose, Adipic Acid/Neopentyl Glycol/Trimellitic Anhydride Copolymer, Acetyl Tributyl Citrate, Isopropyl Alcohol, Rapeseed Glycerides, Allium Sativum (Garlic) Bulb Extract, Cucumis Sativus (Cucumber) Fruit Extract, Chamomilla Recutita (Matricaria) Flower Extract, Oenothera Biennis (Evening Primrose) Oil, Tocopheryl Acetate (Vitamin E), Stearalkonium Bentonite, Acrylates Copolymer, Calcium Sodium Borosilicate, N-Butyl Alcohol, Etocrylene, Silica, Water, Diaceton Alcohol, Oryza Sativa (Rice) Bran Oil, Glycerin, Phosphoric Acid, Trimethylpentandiryl Dibenzoate, Sodium Citrate, Tin Oxide, Citric Acid, Citrus Junos Fruit Extract, Sodium Benozate, Potassium Sorbate, Alcohol Denat., Ferrous Gluconate, Calcium Pantothenate, Propylene Glycol, Phenoxyethanol, Biotin, CI 77891, CI 60725

FREE FROM:

Formaldehyde
Toluene
Dibutyl phthalate (DBP)
Other phthalates
Formaldehyde resin
Camphor
Xylene
Ethyl tosylamide
Triphenyl phosphate (TPHP/TPP)
Bisphenol A (BPA)
Acetone
Parabens
Sulfates
Added fragrance
Nonylphenol ethoxylate
Glycol ether of Series E
MEHQ/HQ
Methylisothiazolinone (MIT)
Gluten
Benzophenone
Styrene

Frequently Asked Questions

How do I apply Diamond Shine Top Coat?

Apply a thin, even layer to bare nails for a diamond-dusted sheen, or over any lakur to add dimension to the finish. The formula is sheer and shimmering rather than opaque, so it's built to enhance whatever's underneath rather than cover it.
- Thin, even layer over bare nails or lakur, whichever look is the goal.
- Wear alone for a subtle, diamond-dusted shimmer on natural nails.
- Layer over color to add faceted dimension to a full manicure.
Applying it in a thin, even layer helps the formula settle smoothly over lakur.

Can I use Diamond Shine Top Coat over glitter or shimmer lakur, or does it work best over solid colors?

Diamond Shine Top Coat works over any lakur finish, solid, shimmer, or glitter. Over a solid color, the glitter particles add a standalone layer of dimension. Over a shimmer or glitter lakur, it tends to pull out and amplify the flecks already in the polish, creating a super sparkly, unique look.
- Over solid lakur: adds its own faceted dimension to a flat color.
- Over shimmer or glitter lakur: enhances and pulls out the sparkle already there.
- Over bare nails: creates a standalone, diamond-dusted sheen with no color involved.
Because it works with whatever's underneath rather than fighting it, it's a flexible finishing step regardless of which lakur finish is already on the nail.

How is Diamond Shine Top Coat different from High Gloss Top Coat?

High Gloss Top Coat is built for a smooth, glass-like maximum shine, while Diamond Shine Top Coat is built for a dimensional sparkle. Both apply as a finishing layer over lakur, but they create very different textures and effects.
- High Gloss Top Coat: smooth, ultra-reflective, glass-like finish
- Diamond Shine Top Coat: shimmering finish with particles that add a visual sparkle.
If a flawless, glassy shine is the goal, High Gloss delivers that. If the goal is added sparkle and dimension, Diamond Shine is built for that instead.

Can I wear Diamond Shine Top Coat alone, without color underneath?

Yes, wearing it alone over bare nails gives a diamond-dusted sheen without any color underneath. The formula is sheer by design, so it works as a standalone, minimal manicure just as well as it works layered over lakur.
- Wear solo for a subtle, shimmering, natural-nail look.
- Layer over lakur when a fuller manicure with added dimension is the goal.
- Switch between both depending on the day, since the formula performs either way.
This flexibility makes it a fit for a five-minute, no-color manicure or as the finishing step on a full one.

Does Diamond Shine Top Coat do anything for nail health, or is it just shimmer?

Diamond Shine Top Coat layers conditioning ingredients in alongside the shimmer, rather than relying on mineral particles alone. Evening primrose oil, chamomile, cucumber, garlic bulb extract, and vitamin E work to nourish, while biotin and vitamin B5 support the nail underneath the sparkle.
The result is a top coat that adds visible dimension to a manicure while still carrying botanical, nail-supporting ingredients.

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167 reviews

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CS
Carmen S.
Verified Buyer
I recommend this product
Pros Smells Great, Conditions, Exceeds Expectations, Would Purchase Again
Rated 5 out of 5 stars
1 year ago
This was exactly what I wanted
This was what I was hoping for. It just adds a shimmer to the colors. It’s is not sparkly it has little sparkles in it so the light catches and it makes the finish look shiny. I attached a video in hopes that you can see how the top coat reflects the light.
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C
CS
Verified Buyer
I recommend this product
Pros Smells Great, Gentle, Exceeds Expectations, Would Purchase Again
Rated 5 out of 5 stars
1 year ago
Love the shine
This was just what I was hoping. The subtle sparkle gives a nice shine . I hope it translates in the picture but it gives your nails a shimmer as the light catches the diamond shine.
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Y
yasmin
I recommend this product
Rated 5 out of 5 stars
4 minutes ago
5 Stars
beautiful, subtle but effective. Love it 😀
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MB
Marla B. E. O. 6. H.
Verified Buyer
I recommend this product
Rated 5 out of 5 stars
1 week ago
Stunning top coat
I use this on top of my neutrals from the sophisticate collection. I'm not the biggest fan of matte polishes and this gives me a beautiful shine with some diamond dust. It's a classy add that is subdued and not to "sparkly". I use 2 coats..
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GL
Gracie L.
Verified Buyer
I do not recommend this product
Rated 1 out of 5 stars
1 week ago
Will Not Dry
I’m not sure if I’m using it wrong or if I got a defective one, but I’ve had this top coat since 2025 and I have never successfully gotten it to dry. No matter how thin my coat was, no matter the amount of drying oil I use, and no matter what I put it over. It will not harden and will smudge with the slightest touch.
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L
LONDONTOWN
4 days ago
We're very sorry Diamond Shine Top Coat hasn't delivered the beautiful, long-lasting finish you expected. We understand how frustrating this must be, especially after trying different application methods. This certainly isn't the experience we want for you, and we appreciate you bringing it to our attention. Our Customer Care team will reach out directly to learn more, offer personalized guidance, and help make things right.