Blue quilted duvet cover, King size

Lost my blue quilted duvet cover (King size) yesterday around 3pm near the Monroe County Public Library on Kirkwood Ave in Bloomington. It's a Hearth & Home duvet cover, cobalt blue with a white stitch border and a small snag near the zipper; I noticed a faint coffee stain on the back too. It’s sentimental because it was a gift from my grandmother, and I really need it back to keep using the matching sheets. If anyone found it, please contact me and I’ll describe the exact pattern and a couple of identifying features.