I am not sure at all that these are fresh waters, to me look like oval South Sea's as in the islands Halmahera, Kei, Banda, Aru,etc there are many south sea pearl farms. The islanders not even have money to buy Chinese fresh waters there, so why bring them there. Tourists have not discovered these islands in big quantities like Bali, Lombok, where u can find fresh water pearls from China.
They look ovals to me and the size should be around 10 -12 mm. Dianne mentioned colors which can confuse like peach, but the overtone pink in white of course possible.
They are of course not natural but cultured and the people she bought them from are possible fishermen who bought these from pearl farm staff. Most of these pearls end up in Jakarta, Surabaya or Lombok/Bali and are mostly bought by Chinese-Indonesian business people