|Queen Mary's Turquoise and Diamond Brooch|
Note: Provenance was initially unknown after the 2014 appearance, and the brooch was referred to here just as the Turquoise and Diamond Brooch. Commenter Franck’s theory of this brooch’s provenance was confirmed at the Royal Jewels of the World Message Board by poster Beth in 2016, who located an illustration of the wedding gift. Sincere thanks to them both.
15 May 2016: 90th Birthday Celebration at Windsor
28 November 2015: Visit to Malta, Day 3
28 September 2014: Church at Balmoral
10 July 2014: Visit to Derbyshire