In the first photo they seemed to have a pinkish cast, which made me think fw is likely. But seeing them with your own eyes, Nora, and perhaps seeing many more natural Bahraini pearls in person which I certainly hope they are, would help you evaluate them. Caitlin's Bahraini pearls are the only ones I've seen in person, so without any provenance given, I'm not likely to guess Bahraini. Can you tell us more?