...

No, jeweled eyes are only from the royal family, so her mother wouldn't have had them.

I have a theory they could be his original eyes, that got taken out, then put back in. When Star saw his past, it was strange his eyes were white, and the eyes were on the ground.

I dont know, I dont think those are his eyes.

i think its not his cause maybe he was a bit blind and some giys offerd him the eyes to fool the royals????maybe?,
¯_(ツ)_/¯¯_(ツ)_/¯

No because in previous chapter after that little red haired white lotus bitch boy closed the door after talking w/ the count he covered his eyes and took out the jeweled eyes. His eyes are originally brown. Plus, said the creepy stalker demon possessing that brown haired guy that jubars are inherently kind. That little white lotus bitch boy hated estrella even when they just met.

I think the jeweled eyes are from a member of the imperial family long ago. It was probably the 2nd person with jeweled eyes introduced in the chapter explaining the previous jeweled eye bearers. I don't really remember that person's story, but for some reason, their jeweled eyes was successfully taken by those who wanted its power before or after the person's suicide. They probably fought for it and it somehow got lost. Based on the kid's past memories, he probably found the eyes on accident

but wasn't it also a white, like a pure complete white??

That might be true