We have so many threads mentoning this exhibit, that I am not even going to list them all here. Do a Search. We have been thrilled about it since 2005 that I remember.
Here is the first time I mentioned it. I quoted a pretty good article in that thread.
Also they have a book of the same title,
Pearls, a Natural History. It is available on Amazon for a pittance. Well it seems to have gone up a bit but it is less than $20.00. this show is sponsored by the AMNH and the Field museum. Valeria even started a thread on it
here less than a month ago with a great link to the cover of the book
here.
On second thought above mentioned show is spending a year in Paris, so I don't think it is the same show.
There is a second show traveling around called "the Allure of Pearls". First mention of that show is
here. It is very easy to confuse these two shows, but I think it is the
Allure of Pearls that is traveing around the US. It is sponsored by the Smithsonian.