The Duchess of Cambridge has worn one of the late Princess of Wales's favourite tiaras to a major diplomatic reception at Buckingham Palace.
The Duchess was seen wearing the Cambridge lover's knot tiara as she arrived for the function this evening.
It is only the fourth time she has chosen to wear a tiara. The most recent occasion was at her inaugural Buckingham Palace state banquet in October, where she wore the delicate lotus flower tiara.