Please note alternative access routes are in place for entry to the Gallery from the visitor car park from Monday 24 August to Wednesday 26 August. Please follow signage and directions from staff.

I keep going back to Cartier: The Exhibition at the National Gallery of Australia next door, and, within the exhibition, to Princess Marie Louise’s diamond, pearl and sapphire Indian tiara (1923), surely one of the most superb head ornaments ever conceived.

Dr Helen Nugent AO, Chairman, National Portrait Gallery at the opening of 20/20: Celebrating twenty years with twenty new portrait commissions.