Sweetheart Neckline

Two curves shaped like the top of a heart.

Close-up of a sweetheart neckline shaped like the top of a heart on a formal dress bodice

A sweetheart neckline is a front neckline shaped like the top of a heart: two rounded curves rise over the bust and meet in a shallow dip at the centre front. It is most often seen on strapless bodices, where the heart-shaped top edge is supported by the fitted, boned bodice beneath it, but it also appears with straps and sleeves. It is named, simply, for its resemblance to a drawn heart.

The Strapless Classic

The sweetheart is the defining neckline of the strapless formal dress — the shape Christian Dior's post-war evening wear made iconic in the late 1940s and 1950s. Its engineering lives below the edge: a strapless sweetheart bodice is built on a fitted lining, often with boning and an internal waist stay, so the heart-shaped edge stays exactly where it was placed instead of sliding down.

A 'modified sweetheart' softens the centre dip to a gentle curve; a 'semi-sweetheart' keeps the curves but raises the dip almost level — useful distinctions when shopping for bridal and bridesmaid dresses.

Sweetheart Variations

FAQs

Why is it called a sweetheart neckline?
Because the two curves and centre dip trace the top half of a heart shape — the universal symbol the neckline is named after.
Does a sweetheart neckline need a special bra?
Strapless versions are usually built with internal support or worn with a strapless bra; versions with straps can often take a standard bra.
What jewellery suits a sweetheart neckline?
A short pendant that ends above the centre dip, or a choker — long necklaces fall awkwardly against the shaped edge.