The original Lovers Knot Tiara was given as a wedding present to Princess Augusta of Hesse, the Duchess of Cambridge, in 1818 by her family. The name comes from the design of the tiara which has lover knot bows that continue all the way around the tiara. In between each knot there are drop-shaped pearls.

In 1913, Queen Mary, Princess Augusta’s granddaughter, commissioned a tiara just like the one that she owned in 1818. Although a slightly different style, the 1913 version of the Cambridge Lovers Knot Tiara has many of the same features. It consists of a lower band of diamonds and 19 arches above which also include diamonds. In between the arches and the lover knots, there are 19 drop-shaped pearls and above the arches are 19 drop-shaped pearls on spikes.

The Cambridge Lovers Knot Tiara stayed in the hands of Queen Mary until 1953 when she died and it was passed on to her granddaughter, Queen Elizabeth II. This was worn by her frequently and was then passed down to Princess Diana for her marriage with Prince Charles. The tiara is now back in the hands of the Queen.