The Delhi Durbar Tiara - by Garrards, for Queen Mary for the Delhi Durbar on December 12,1911. Durbar is Hindi, for a ‘ceremonial gathering to pay homage’. The gathering was to install King George V and Queen Mary as Emperor and Empress of India. King George V admired this piece and referred to it as “May’s best tiara”. It has been worn in a variety of ways as shown here.
Grand Duchess Viktoria Feodorovna of Russia, prev. Grand Duchess consort of Hesse, born Princess Victoria Melita of Saxe-Coburg and Gotha November 1876 – 2 March Interesting Wikipedia article on her - linked. Hand painted photo by Justyna.
Mary Douglas, Marchioness of Queensbury, Wearing a diamond and pearl tiara with seven diamond motifs, with a button pearl in the centre and topped with a pear-shaped pearl, with smaller diamond spacers.