This is a very delicate and painful situation. The loss of your mother’s crystal set, something of incalculable sentimental value, makes this incident particularly difficult to deal with. Your mother-in-law, it seems, had no intention of causing this damage, but the consequence is the same: something precious was destroyed.

To continue her story, we need to know a few more details about what followed this event.

Who framed her, and how?
How did your mother-in-law react when she found out?
How did this situation affect your relationship with your husband and mother-in-law?