The Imperial State Crown (1937) is worn by the Queen at each State Opening of Parliament. One of the youngest crowns in the collection, it holds a number of much older gems. The crown was remade in 1937 after the previous frame weakened under the weight of the gemstones.
A jewel of great sentimental value to the Danish Royal Family is the diamond and platinum Cartier tiara of Crown Princess Margarita of Sweden. Description from earth-god.ru. I searched for this on bing.com/images