7 Last Minute Halloween Costumes

Happy Halloween! But if your costume’s still TBD, don’t stress. We’ve rounded up seven timeless last minute Halloween costumes you can pull together in minutes (with a little help from your jewelry box). Whether you’re channeling Audrey Hepburn’s classic charm or Wednesday Addams’ dark chic, these ideas prove you don’t need a full costume closet to make magic — just a few clever details and a statement piece or two from Samantha Siu.

1. Audrey Hepburn

Audrey Hepburn is everyone’s go-to for a reason — simple, elegant, and always recognizable. Start with the little black dress you already own, add satin gloves, and throw on your favorite oversized sunglasses. Add a sleek bun, a touch of eyeliner, and the quiet shimmer of The Rising Phoenix Bracelet from Samantha Siu catching the light as you lift your coffee — suddenly, you’re right there on Fifth Avenue.

2. Cleopatra

This look is simpler than it seems — the real magic is in the accessories. Start with a black or gold base, something flowy or draped that moves with you. Then layer on the details: delicate headpieces, chain belts, and layered gold jewelry. Samantha Siu’s Glistening Desert Bracelet and The Lustrous Kingdom Bracelet stack beautifully together, adding depth and texture, while The Willemstad Earrings tie it all in with a bold finish. Put it all on, and you’ll quite literally be the loudest in the room — in the best way possible.

3. The Little Mermaid Ariel

A modern Little Mermaid look doesn’t need much — just a little shimmer and the right mix of colors. A lavender or shell-toned top paired with a flowy, beachy skirt instantly gives that under-the-sea energy, especially with Samantha Siu’s Under the Sea Necklace, Bracelet, and Earrings tying everything together. Add a pearly bag or shell-inspired nails to finish it off — simple, soft, and perfectly mermaid without sacrificing your mobility(or voice).

4. Cupid

This one’s all about soft romance — white, pink, and just a little sparkle. A lace corset or mini dress with sheer stockings sets the mood, and angel wings instantly make it recognizable. Keep it sweet with soft makeup and dainty details like Samantha Siu’s Glistening Desert Necklace and The Under the Sea Bracelet, adding that perfect gold-and-rose glow. Wear this and who knows — someone might just fall in love tonight.

5. Pirate

If you’re feeling that “I came, I saw” kind of energy this Halloween, this one’s for you. A pirate look is bold, layered, and full of attitude — think a corset or lace-up top, a draped skirt that moves with you, and worn-in boots, little touches that make it feel rugged but still put-together. Pirates always have a lot under their belt — and for this look, you literally do: fishnet at the waist, stacked belts, and pearls belt chain. Add some gold with Samantha Siu’s Gotham Nights Necklace, The Lustrous Kingdom Bracelet, and The Willemstad Earrings for that rich, rebellious edge. It’s the kind of look that doesn’t ask for attention — it takes it.

6. Wednesday Addams

This look is perfect if you’re putting something together last minute, going for a lowkey vibe, or just appreciate Wednesday’s quirky kind of elegance. A white shirt layered under a black vest with a black mini skirt captures that clean, structured contrast, while knee-high socks and loafers keep it classic and preppy. Finish it off with Samantha Siu’s The Gotham Nights Necklace for a subtle, refined touch that stays true to Wednesday’s dark charm without overcomplicating it.

7. Witch

Whether you’re going for a wicked witch or just a witch of your own design, this look is all about making the basics work hard. A black slip dress, sheer tights, and pointed heels create an instantly sleek silhouette, while a hat or lace gloves add drama if you’re in the mood. A black slip dress, sheer tights, and pointed heels create an instantly sleek silhouette, while a hat or lace gloves add drama if you’re in the mood. Grab a broom and your r.e.m. beauty Wicked Lip Oil — I guess the Wicked Witch of the West isn’t dead after all. It’s an easy, last-minute costume built entirely from wardrobe staples. Finish the look with Samantha Siu’s The Lustrous Kingdom Bracelet and The Rising Phoenix Earrings for that polished edge. Can’t wait for Wicked: For Good.

Hope this helps you find some inspiration for the Halloweekend— and maybe a little sparkle from Samantha Siu. Happy Halloween!