Beth was searching for information on a Boucheron crown worn by lady Wolverton in a thread from 2019:

https://mb.boardhost.com/historyroyaljewels/msg/1573206064.html

I stumbled upon a reference to this lady while looking through a Sotheby's catalogue from late 2020. It's a necklace, a reworked tiara, which is supposed to be identical to the tiara of lady Wolverton. Swipe to see the tiara version and scroll down to read about lady Wolverton:


https://www.sothebys.com/en/buy/auction/2020/magnificent-jewels-5/boucheron-silver-topped-gold-natural-pearl-and