I bought these from a lady who told me that her mother brought them from Bahrain in the 90's as natural sea pearls. I know this is a difficult field way far out of my knowledge ...
The story is that once I was shown by an old Iraqui lady a Bahraini multi stranded rice pearl necklace she had from her young age and I was so impressed by it's unusal rich luster I had to seek after since and this time I thought they seem to me very close to hers...

A quick test from the specialized site is the natural pearls are colder at touch and yes they are compared to my cultured pearl strands.

The luster is quite golden and much more iridescent than what I know of cultured pearls. Size is around 5-6mm widest in rice shape.
Does someone would recognize at least natural sea pearls from these photos ? (I know pearl photos are very improbable)

Hoping your opinions !