I have lost my charm bracelet worth over 200 dollars, and my mom wants to add another charm...?

Question

As a confirmation gift to me, my mom gave me a charm bracelet from james Avery. I can't find it, and she wants to add another charm to it. She doesn't know that I don't know where it is.... what should I do? Should I tell her that I lost it, or should I try my hardest with all my might that I will find it?

Answer 1

 but i'm only 12 I dont even know im my mom's bracelet was real jewels Q_Q 

She's abroad so... maybe ill tell her as soon as she comes back??