person A: I recently dug up a necklace my grandmother gave me when I was young for a birthday. I hadn't seen it in years.
person B: Oh my.. that must have been very sad. I can't even imagine how you must have felt. 
person A: Yeah_comma_ she passed more than five years ago and I had forgotten all about it. It brought back so many memories though!
person B: I'm so sorry.! But I'm really glad you've got those pleasant memories and the memento to hold on to so you can remember her fondly. 