Baxter, they were discussed here in the past and I think one was a black pearl. They seemed to be "paired" in some way.
--Previous Message-- : : Thanks for those photos, Nellie. That is an : interesting look with Princess Marina : wearing two cluster pendant brooches on her : lapel. The white pearl brooch is now worn : by Princess Michael. Do we know about the : other one, perhaps emerald or black pearl? : : :