How frugal fashionistas can stay on trend

Nowadays, it's not just celebrities who wear high-end clothing and accessories. The influencers filling your social media feed likely wear them, too.

Millennials love buying luxury names, according to Thomai Serdari, academic director of the Fashion & Luxury MBA at NYU Stern School of Business and brand strategist at Brand(x)Lux.

Some younger people are environmentally or socially conscious and invest in higher-end labels, buying one quality item that lasts for years or spending more money for a brand with a mission they believe in. Others want to treat themselves to a premium handbag, watch or pair of shoes every once in a while.

"They like to be seen and they like to be photographed on Instagram carrying all the big names," Serdari said. "Chanel, Louis Vuitton, Prada and all these luxury brands."

Here are a few ways to save money on products from some of the most sought-after labels. These tips can be applied to different levels of brand prestige and price points.

Perhaps your best shot at savings is in the secondary market.

The RealReal is a marketplace for consigned luxury goods, where you can get some items for a fraction of their retail price, according to Sasha Skoda, head of women's at the RealReal.

There are other places to shop for these types of savings, too. But if you are not shopping at a trusted establishment, you could be vulnerable to phony goods.

"The more brand awareness that exists about a specific brand, the more people try to counterfeit the product," Serdari said.

Stay safe by sticking to reputable sellers. The RealReal, for example, has a team of experts that authenticates the items it sells. On the other hand, snagging what looks like a low-priced Prada tote listed by a seller you don't recognize on eBay can be much riskier.

Outlet stores, where brands sell their products straight to consumers, can also be sources of savings, but they likely won't offer the same items you would see from the brand elsewhere.

Serdari said products are often manufactured specifically for an outlet store. They will usually be the same quality but not the current collection from the brand. Despite this downside, outlets are still a good option if you want the social recognition and logo of a label without paying as much for it.

But don't count out online sales, either. Some designer brands, such as Coach and Michael Kors, occasionally host annual sales on their websites. (More expensive luxury brands typically don't, Serdari said.)

You will save during these recurring promotions, but Serdari warns that sale sections are often more limited and may contain items that aren't as desirable. Check for a sale tab on the brand's website.

Even if you find a good deal on that leather wallet or those cat-eye sunglasses, it's likely you will still be spending a good chunk of money for your purchase, depending on the original price.

Remember to account for your extravagant treat in your regular budget. According to the 50/30/20 budget, needs should take up no more than 50% of your monthly budget, wants get another 30% and savings encompass the remaining 20%.

A luxury item would fall in the 30% category. Ensure you have room for it along with the other expenses that are already in that group like your morning latte and weekly takeout dinners.