The Queen's Diamond Art Deco Double Clip Brooch
Set with diamonds including round and baguette cuts in two triangular shapes, this brooch looks like an example of the popular Art Deco double clip style - probably two separate brooches that can be worn together, as The Queen did when she first wore this piece at the Newbury Races, or separately. A similar example of the classic style was owned by Queen Elizabeth The Queen Mother and is now worn by The Countess of Wessex.
27 June 2016: Visit to Northern Ireland, Day 1
18 April 2015: Newbury Races
Photo: Max Mumby/Indigo via Getty Images