Oh Ashjoy, I know just how you feel! I lost mine about 30 years ago. It was gone for weeks. I cried and cried, and begged for a new ring. My husband refused. I cried and cried. The worst part--I knew it was in the house (5 bdrs.)
Then my girlfriend dropped her earring in the kitchen, and it slid under the fridge. She cried "melissa! I found your ring!". The only place I had missed. We had even moved the washer and dryer. Cat games! I didn't even care, I was just glad to get it back, but I never left it where he could get to it again!!!!
Maybe you will find yours. Don't give up hope. I know it can happen!