How Princess Kate's Style and Beauty Choices Created a "Butterfly Effect" for One Designer

['Amy Mackelden', 'Weekend Editor', 'Layer Van-Ds .Vds-Author Font-Size Var --Text-Base', 'Font-Size Var --Vds-Author-Font-Size', 'Var --Text-Base', 'Line-Height Var --Text-Base--Line-Height', 'Line-Height Var --Vds-Author-Line-Height', 'Var --Text-Base--Line-Height', 'Letter-Spacing Var --Tracking-Normal', 'Letter-Spacing Var --Vds-Author-Letter-Spacing'] Latest from Marie Claire 2026-07-29 17:39:41

Princess Kate's influence over the fashion world has been well-documented, with items the royal has worn regularly selling out following her endorsement. Unsurprisingly, her hair and beauty choices have also added to the "Kate effect," causing royal fans worldwide to replicate the Princess of Wales's style. And according to one jewelry designer, Princess Kate's decision to wear the brand was transformative. Latest Videos From Marie Claire Watch full video here:While other celebrities, including Jennifer Lopez and Rachel Zegler have shown love for the brand, Princess Kate's endorsement has generated the biggest sales. Princess Kate wearing Heavenly London earrings at the National Portrait Gallery Reopening on June 20, 2023.