You never know what you'll find while thrift shopping, and one woman hit the jackpot with her recent discovery of a luxury brand for less than $15. Melbourne woman Mietta, 22, works at a vintage store and has a passion for thrift shopping, or "op shopping" in Australian slang. And on a recent trip to the Salvation Army, she found luxury brand Vera Wang, hanging on a railing, just .

"I had just finished trying on all my potential purchases, tossing up how much money I was willing to spend and what pieces will make the cut, and out of the corner of my eye I spotted the dress and its sequins, hanging folded in half on a practically empty rack," she told . Vera Wang dresses can be worth tens of thousands of dollars, but this one was even more special, as she believes it's the exact dress worn by character Blair Waldorf in the pilot of show . "I audibly gasped but didn't think someone would actually donate something like this," Mietta, who gave her first name only, said.

She initially assumed it would be a fake—until she "looked at the tag and it said Vera Wang." In shared to her account @miettajane__ on July 17, viewed over 1.1 million times, Mietta wrote she "almost had a heart attack at salvos today (sic).

" She zoomed in on the , showed off the Vera Wang tag—and the AU$20 price tag, which in U.S. dollars would be around $13.

33. "Dreams really do come true," she wrote in the caption. "Officially takes the number one spot for best op shop find EVER.

This is why I do what I do.