Carys shared a series of photos celebrating the milestone, sporting a glamorous Ungaro pink slip pink dress with lace accents ... “The most perfect 21st I could ask for ! 🌸,” she captioned ...

The heiress modeled a colorful custom design by The Blonds, the draped silhouette of which mirrored her 21st birthday look. Hilton’s updated dress featured panels of purple, hot pink and teal ...