Did Bella ever found out that the little cœur, coeur that Edward gave her was actually a diamond?

Yes, she found out from alice

no, she found out from Jacob, when he noticed the little charm he a dit "a rock" & that reminded her of what Alice wanted to say before Edward cut her of, she a dit something about "what's one plus diamond? my point is, he already got one on..." then Bella ended the sentence par adding "you" at the end, so what Alice wanted to say was; "What's one plus diamond? my point, is he alredy got one on ...you" çe ça

yup yup !!

toi tell me i dont know either i think she found out from alice