Poor grandma gets a cheap old ring as a gift, and the girl makes fun of her. She throws it away, and it opens.

your grandmother? he asked grabbing her shoulders worriedly.
She left Emma sighed. For good. Lets head inside.
But her eyes want back to the box in her hands. Biting her lip tightly she threw the box on the ground as hard as possible.
Emma! her new husband yelled. Careful! Whats that?
Emma barely paid attention to him because the box broke on impact and a ring fell off. It was shiny with big rocks that looked Emma is that diamond ring? Dylan asked.
She knelt quickly grabbing and examining it. Theres no way. How could she afford this?
Emma looked at the broken box and realized a tiny piece of folded paper was peaking out. She grabbed it and gasped as her grandmothers words registered slowly.
Dear Emma
I know you hate me for what I did dear but your father was not a nice man Emma. He did terrible things and didnt care about the consequences or the people he hurt. I told my daughter not to marry him but she didnt listen and I know its his fault she didnt want to live anymore.
I know I couldve saved him from jail but he didnt deserve it. He also didnt deserve such a loving daughter. Theres so much you dont know but I wanted to keep the bakery for you not me. I hope you can understand what I did and why one day. Please dont hate me and take this ring as part of my wedding present. A lawyer will reach you about the other part.
Love you to the moon and back
Gran.
Oh God Emma covered her mouth and her heart melted.
Emma drove quickly to her grandmothers house the following day. She hadnt been there in years. But strangely she saw two big trucks right outside. Upon closer inspection she realized people were moving into her grandmothers house.
She got out angrily asking for an explanation since it was Marthas house. The movers didnt know what she was talking about but they told her the house had been sold recently.
Desperate for answers Emma knocked on the door of Marthas elderly neighbor Judy. The old woman greeted her warmly and invited her inside.
What are you doing here darling? I miss Martha very much Judy said