Fashion and beauty’s diet soda obsession knows no bounds. ICYMI: 2025 was the year of Diet Coke, with influencers and brands capitalizing on the sudden cult craze. Despite launching in the early ‘80s, Diet Coke resurfaced as a cultural beverage icon thanks to Gen Z creatively dubbing it the “fridge cigarette” (AKA a modern midday pick-me-up) on TikTok. In a world where nostalgic trends are increasingly at the forefront, it’s no surprise that Diet Coke fizzed to the top of For You pages near and far.

Now, on any given day, there’s a good chance that you’ll come across Diet Coke content from influencers like Kristen Hollingshaus and Rachel Reno, not to mention merch from The Coca-Cola Company itself as well as Owala, Old Navy, and Abercrombie & Fitch. All this to say, Diet Coke is the ultimate It-girl beverage and accessory, and now it’s inspiring manicures, too. If you’ve been craving something as dark and bubbly as your favorite soda, the nail department is delivering—and the results are as chic as they are evocative. Ahead, learn all you need to know about the Diet Coke nails trend, complete with inspo and insights from mani experts.

What Are Diet Coke Nails?

Diet Coke nails can be interpreted in two ways. On one hand, we have ultra-obvious Diet Coke-coded nail art, complete with red, black, and metallic silver accents. On the other hand, there’s the more subtle (but perhaps even more delectable) take: rich dark brown and/or black nails, typically with a velvet or fizzy glitter finish. 

“Diet Coke nails are such a fun look,” says Le Mini Macaron cofounder Christina Kao. “They have a dark, rich base (think espresso, velvety gray, or black) with the ‘fizz’ coming from micro glitter specks or magnetic cat eye. This look brings texture and dimension, and really catches the eye, which is what we’re wanting from nail art these days.”

As much as we love bold, mismatched manicures, a less-is-more approach can be refreshing from time to time. That’s part of what makes Diet Coke nails so desirable: They’re neutral and versatile, yet they’re a bit bolder than your go-to nude mani. 

“Just like everyone’s favorite 3 p.m. drink of choice, Diet Coke nails are equally as refreshing and classic as their beverage namesake,” says Olive & June mani trend expert Olivia Van Iderstine. “This trend is timeless because it’s a deep neutral shade of cola brown that takes you through all seasons with that instant cool factor of an effect on top. The result is a mani that’s so pretty, you can’t stop staring at it. It’s a true craving.”

How to Get the Look

Another highlight of Diet Coke nails? They’re easy to DIY: According to Kao, all it takes is a high-contrast black or dark brown micro glitter polish, or a cat eye gel polish in the same palette. Of course, once you get scrolling, you’ll find that some people use different approaches, such as a layer of velvet polish beneath a jelly black or brown top coat. “A velvet effect polish or a micro glitter creates an effervescent look to your mani, just like soda bubbles,” Van Iderstine shares. “You can also try an aura effect to get the Diet Coke look by stamping on a slightly lighter shade of brown to the center of your nail or a darker polish all around the edges of your nail.” 

However you choose to achieve this viral soda-inspired nail trend, a stunning, multidimensional, Diet Coke-coded end look is guaranteed. Below, find 10 examples that highlight the range of this cult-favorite trend.