Ivory queen duvet cover with navy piping, monogram MH

I lost my ivory Brooklinen queen duvet cover with navy piping yesterday around 3pm near Coligny Plaza on Pope Avenue, Hilton Head Island. It's a Brooklinen duvet cover in ivory, queen size, with a distinct navy border and a small monogram 'MH' stitched into the inner corner. There's a tiny coffee stain near the zipper. It’s sentimental to me because it was a gift from my grandmother, and I really need it back. If found, please reach out — I can offer a small reward and can meet you near Coligny or Shipyard to pick it up.