You don’t have to visit Nantucket to imagine the vibes. It’s the perfect blend of coastal, preppy and luxe, channeling East Coast summer energy in the classiest way possible. The island is filled with boutiques, but with a clientele of old money Hamptons gals, prices are through the roof. Dresses are particularly expensive, rarely dipping below the $200 mark.

If you want the exact look without the triple-digit price tag, look no further than Amazon. Some of the most timeless, expensive-looking dresses are hiding in the fashion section, giving rich mom vibes in an understated way. Read on to see the 18 Amazon dresses that guarantee millionaire status. They start at just $18!

18 Nantucket-Inspired Dresses to Look Old Money-Rich

Errand-to-Brunch Dresses

1. Our Favorite: Comfy, classy and all sorts of chic, this stretchy midi dress is a must-have for summer and travel.

2. Plaid Princess: This button-front shirtdress gives CEO energy without even trying. We can’t pick a color!

3. Yacht Wife: A flattering tie waist, nautical striped print and secret pockets are just a few highlights of this knee-length tank dress.

4. Selling Out: Over 1,000 fashionistas bought this tiered midi last month alone. Ruffle sleeves add a playful twist!

5. Total Steal: At just $18, we may grab two. This spaghetti-strap sundress has a delicate floral print that looks like Zimmermann.

6. Light as Air: This short-sleeve mini dress has the breathability of cotton with the classy look of linen.

7. Flattering Find: We’re obsessed with this preppy striped maxi that subtly defines the waist and hides the tummy.

Beach Day Dresses

8. Our Favorite: Don’t be surprised if heads turn. You’ll be the center of attention in this flowy printed dress.

9. Asymmetrical: Visually elongate your torso with this loose spaghetti-strap maxi that boasts dynamic zig-zag tiers.

10. Simple Stunner: Love quiet luxury? This breezy babydoll mini dress has your name on it.

11. Flower Girl: Flutter sleeves, dainty flowers and stretchy, sweat-wicking material make this beach dress an easy add-to-cart.

12. Splurge-Worthy: Look no further for the ultimate strapless maxi that frames, cinches and lengthens.

Dinner Out Dresses

13. Our Favorite: This 100% cotton dress is as cooling as it gets. A halter neckline and maxi length make you look model-tall.

14. Designer-Like: Everything about this striped midi is swoon-worthy, from the fit and flare design to the lightweight knit material.

15. Playful Mini: This $27 mini dress would cost hundreds anywhere other than Amazon. It’s perfect for vacation!

16. European Flair: Ruffles, stripes, pockets, oh my! This summery midi dress doubles as a wedding guest outfit.

17. Charleston Charm: Vintage and fairytale-like, this sundress has tie sleeves, a smocked bodice and a collarbone-enhancing square neckline.

18. Knit, Please: Summer knits are the easiest way to nail a rich East Coast aesthetic. This ribbed maxi is ultra-stretchy!