Posters of original research, analyses, insights etc retain all rights to their work.
Such research etc cannot be used in any format without the written consent of the author.
Re: US First Ladies. Michelle ObamaArchived Message
As First Lady, Michelle Obama was noted for her modern, individual style. From what I know she rarely wore jewels and when she did for evening wear they were very modern and borrowed for the occasion -- as for this occasion.
Often, she let the focus be on her dress as for the State banquet in the UK
It is possible that her pearls seen in the photo below are genuine.