Lost silver engagement ring with round diamond and intricate engravings in Bever Park, Cedar Rapids.

I lost my grandmother's silver engagement ring in Cedar Rapids while out for a walk in Bever Park. I was sitting on a bench when I noticed it was gone, likely slipped off my finger. The ring has a beautiful round diamond on top and some intricate engravings on the band. It means a lot to me, and I'd appreciate any help in finding it.