Ruby From Steven Universe Halloween Costume

Ruby Halloween Costume Items

Ruby Costume Items

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Ruby Steven Universe Crystal Gems Cartoon

1 Burgundy JumpsuitA sleeveless wide leg jumpsuit with adjustable straps. Her outfit is maroon and red, and this burgundy is close. It is loose and stretchy, so the belt does the shaping.
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2 Red HeadbandA wide red cotton band. Plain red is all it needs.
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3 Large Red Gemstone (essential)Her gem sits in the palm of her left hand, and fans will look there. This pack has ten 40mm round red acrylic gems with flat backs. Use skin-safe adhesive or glue one onto a glove, since craft glue does not belong on skin.
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4 Red Body Paint (essential)Her skin is bright scarlet, and this is what turns the outfit into Ruby. It is a 120 gram water-activated kit, enough for the face, neck and arms. It rubs onto fabric, so powder it once it dries.
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5 Purple Cinch BeltA wide, stretchy dark purple belt with a gold buckle that fits waists from 23 to 55 inches. It goes over the jumpsuit at the waist.
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6 Purple BootiesPurple suede ankle boots with a low heel. They are comfortable, but suede stains fast in a crowded room.
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7 Dark Red Bob Wig (essential)Her hair is a square red cut. This is a straight deep red bob with bangs. Trim the bangs to a flat line and keep the ends blunt, because a layered bob loses the box shape.
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How to Style the Ruby Halloween Costume

People read the red skin first, then the hair, then the hand. Patchy paint makes the costume look like a sunburn. A layered wig instead of a blunt cut loses her square outline. Hide the gem and nobody can tell you from a red person in a jumpsuit.

In “Keystone Motel,” Ruby spends most of the episode arguing against forgiving Pearl right away, and she does not back down. Do that at the party. Take a side in a small argument and hold it past the point where it makes sense.

Test the gem before the party

The gem sits on a hand you will use all night. Try the glue on a glove first, because a gem that pops off during a handshake ends up in someone’s drink.

Watch the edges

Red paint that stops at the collar leaves a pale line. Paint past the neckline and over the ears, and check your hairline in a mirror.

Ruby Group Halloween Costume Ideas

Duo Idea

Ruby & Sapphire

Excellent duo idea, because red and blue read as a couple from across the room. Ruby is the loud one and Sapphire is the calm one, so decide who plays which before you leave.

Ruby Sapphire

Group Idea: The Fusion Family

Ruby, Sapphire & Garnet

Might work, but it needs explaining. Garnet is Ruby and Sapphire fused, so two people stand next to a third who is literally both of them, and anyone who has not seen the show will just see three people in red, blue and burgundy.

Ruby Sapphire Garnet

Group Idea: The Steven Universe Team

Ruby, Sapphire, Amethyst, Pearl, Steven

Strong group if the crowd knows the show. The five look different from each other, so nobody blends in, and Steven is the easiest costume to put together.

Ruby Sapphire Amethyst Pearl Steven

Ruby and Sapphire from Steven Universe together on a beach, reference image for the Halloween costume

Ruby Halloween Costume DIY Tips

Building the Look

The paint and the wig carry this one. The rest you can swap for what you own.

Jumpsuit: thrift stores carry burgundy rompers, so look there first.
Headband: a strip of red fabric works, or buy one.
Gem: skin-safe adhesive on the palm, or glue it to a glove.
Belt: a folded purple scarf does the same job.
Boots: skip the purple if you cannot find it. Maroon or dark red reads the same from across a room.

Playing Ruby at the Party

She is loud and stubborn, and she picks a side fast.

Hold your gem hand up when you make a point. It gives that hand a job.
Pick a small fight about something silly, like the playlist.
Do not throw punches. It is a bit, not a bit with contact.

Ruby Halloween Costume: FAQ

How do I dress like Ruby for Halloween 2026?

Wear a burgundy jumpsuit with a wide purple belt and purple boots. Add a dark red bob wig, a red headband, red body paint on your skin, and a red gem on your left palm.

Is the Ruby costume still a good choice for Halloween 2026?

Yes, for fans of the show. Ruby is half of Garnet, who is better known, so Ruby is easier to read when someone stands next to you as Sapphire. Alone, many guests will see a red person in a headband.

Who is Ruby in Steven Universe?

Ruby is one of the two Gems that fuse into Garnet, along with Sapphire. She is impulsive and hotheaded, and she was a common foot soldier on Homeworld.

Who voices Ruby?

Charlyne Yi voices Ruby. The show credits her as Lo Mutac.

Where is Ruby’s gem?

In the palm of her left hand (Steven Universe Wiki). Put your red gem there, and keep that hand in view.

When does Ruby first appear?

A silhouette hints at her in “Fusion Cuisine,” and she officially debuts in “Jail Break.”

Do I need the red body paint?

Yes. Red skin is the main thing people read. Without it you look like someone in a maroon jumpsuit and a bob wig.