Dianna Tieu is an accomplished professional with a background in psychology holding a BSc with 1st Class Honours from UCL.

She has an extensive career with The Estée Lauder Companies Inc., where she has held various managerial and marketing positions including Vice President General Manager for La Mer & Darphin UK & Ireland.

With a wealth of experience, she has previously served as General Manager for La Mer UK & Ireland, Marketing Director for Estée Lauder & AERIN Beauty UK & Ireland, Group Marketing Manager for Estée Lauder & AERIN Beauty UK & Ireland, and Regional Marketing Manager Asia Pacific for Jo Malone London within the same company.

Dianna's expertise extends beyond Estée Lauder, having been Brand General Manager for Natura Bisse covering Hong Kong, China & Singapore at Lane Crawford.

Her career highlights also include leadership roles such as Head of Marketing for Beauty at Harrods and various marketing positions at The Estée Lauder Companies Inc., including Assistant Marketing Manager for Creme de la Mer, Marketing for Clinique, and Marketing for Creme de la Mer & Prescriptives UK & Ireland.