Many thanks Franck! I wish that Her Majesty's press office would release some information about this jewel.

But what is on the "Queen's Jewel Vault site" is very interesting.

Are you saying there that this is the brooch worn by QEII at her meeting with the Prime Minister of New Zealand in April 2018? http://queensjewelvault.blogspot.com/2019/07/the-pink-and-black-paisley-brooch.html#disqus_thread

Apologies if I have got this wrong Franck. Today has not been one of my better days. I am still recovering from "a bug".