G.prainiana seeds

[Chandramohan]

Are these G.prainiana seeds?

[Finca La Isla]

They might be, they look like that but that’s not the only seeds that those could be, considering the photo.

[Chandramohan]

Thank you. I bought these as G.prainiana seeds, but as they do not look like any Garcinia seeds I have seen, I was wondering.

[Stevo]

Yes they do resemble Prainiana seeds

[DurianLover]

Take another close up HD photo for definite ID.

[fruitlovers]

Yes they do resemble Prainiana seeds

Prainiana seeds do look different from other garcinia seeds, and certainly very different from regular mangosteen. The size and shape look about right. Only the color looks way too dark, but that's probably due to the medium they were in?
Here you can see what the seeds look like inside the fruit and get an idea of size and shape:

[Chandramohan]

Thank you Oscar. They were sent in dripping wet Coirpith!