Pearl fans, do these earrings look authentic?

[KBecks]

I am wondering if these earrings look like authentic Mikimoto -- my big concern is that the pearls do not look round. I am not experienced with the brand and am shopping reasale. Thank you!

 

[Christofle]

I am wondering if these earrings look like authentic Mikimoto -- my big concern is that the pearls do not look round. I am not experienced with the brand and am shopping reasale. Thank you!
View attachment 4915959
View attachment 4915958
View attachment 4915957

I can’t speak to authenticity but Mikimoto doesn’t only use spherical pearls. They also have more oblong shaped ones and some baroque ones with unique shapes.