14k gold ring with sapphire and inscription

I lost my 14k yellow gold ring yesterday around 4:15pm near the Washington Square Arch in Washington Square Park, Greenwich Village. It's a slim ring with a small blue sapphire on top and a delicate engraving inside that reads PK plus a tiny heart. The ring is in decent condition but has a few micro scratches from daily wear. It has huge sentimental value because it's my grandmother's ring and I really need it back. If you found it, please let me know. I'm hoping to reunite it with its owner as soon as possible.