This bracelet is a stretch bracelet made with clear slightly heart shaped beads, that have a subtle iridescent or opalescent quality, giving them a faint pinkish hue.
To style this bracelet, consider the following:

Occasion:

Casual:

It's suitable for everyday wear, adding a delicate touch to casual outfits like jeans and a t-shirt or a summer dress.

Formal:

Its subtle sparkle can complement evening wear, especially if the outfit has other iridescent or shimmery elements.

Clothing:

Colors:

It pairs well with pastel colors, neutrals (white, gray, beige), and even contrasting darker colors like navy or black. The pink hue allows it to blend seamlessly with rose, blush, or mauve tones in clothing.

Styles:

It can enhance bohemian, minimalist, or classic styles. For a bohemian look, it can be stacked with other beaded or metal bracelets. For a minimalist style, it can be worn alone as a subtle statement piece.

Other jewelry:

Metals:

Silver or white gold jewelry would complement the cool tones in the beads. Rose gold could also work, enhancing the pink hues.

Stones:

Clear crystals, pearls, or other light-colored gemstones would harmonize well. Rose quartz or morganite pieces could create a coordinated look.

Nail polish:

The bright pink nail polish in the image creates a playful contrast. Other suitable colors include:

Neutrals:

Nude, light pink, or clear polish for a subtle look.

Metallics:

Silver or gold for a glamorous touch.

Pastels:

Light blue, lavender, or mint green for a soft and feminine style.

Makeup:

A natural makeup look with a subtle shimmer on the eyes or lips would complement the bracelet's delicate sparkle.

Hair:

The bracelet would look elegant with both updo hairstyles and loose, flowing hair.