Homeless Man Returns Diamond Engagement Ring (CNN) -- Talk about good karma. Well-wishers from around the world are opening their wallets to a homeless man who returned a diamond engagement ring to its rightful owner, after she accidentally dropped it in his donation cup. "I actually feel like I'm especially lucky to have this ring now. I loved it before. I loved it so much, but I love it so much more now. I feel like it has such great karma," Sarah Darling told CNN's "Starting Point with Soledad O'Brien." Darling, who is from Kansas City, Missouri, said she was devastated when she realized she'd lost her ring. She almost never takes it off, but it was giving her a bit of a rash so she did, zipping it in her coin purse for safe keeping. Later, she absentmindedly emptied the contents of that purse into the collection cup of Billy Ray Harris, who is homeless and often stays under a bridge in Darling's hometown. It wasn't until the next day that she realized her ring was gone. "It was horrible. It was such a feeling of loss," Darling said. "It meant so much to me beyond just the financial value." She went back to look for Harris, but he was gone. She returned the next day and found him. "I asked him ... 'I don't know if you remember me, but I think I gave you something that's very precious to me,' and he says, 'Was it a ring? Yeah, I have it, I kept it for you,'" Darling said. She was floored. To show their appreciation, Darling and her husband set up an online fundraiser for Harris. The donations and praise have poured in.