What a night to remember! On Sunday, February 24, Lady Gaga won her first Academy Award for Best Original Song for A Star Is Born at the 2019 Oscars and when the 32-year-old singer went onstage to give her emotional acceptance speech, it was hard not to notice the huge diamond necklace she was wearing around her neck.

According to Women’s magazine, Gaga’s 128.54-carat Tiffany & Co diamond necklace was last worn by the one and only Audrey Hepburn back in 1962 in publicity posters for Breakfast At Tiffany’s. The necklace, which is called “the Tiffany diamond” hasn’t been worn much since then either. Before it graced Audrey’s neck in the ’60s, it was first worn at the 1957 Tiffany Ball by Mrs. Sheldon Whitehouse and later made its first red carpet appearance at the Academy Awards when Gaga, 32, walked the red carpet with it on, so the necklace has only been worn a mere three times!

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Charles Lewis Tiffany first purchased the stunning rock for $18,000 when it was first discovered in South Africa in 1877. Although the necklace costs about $30 million today, it was previously put on sale in 1972 for $5 million, but, unfortunately, no one placed a bid, so today, the Tiffany diamond travels to jewelry fairs and museum exhibitions around the world.

Along with the priceless diamond, Gaga wore a beautiful Alexander McQueen dress with leather gloves to the Oscars and, during the event, she never took the Tiffany diamond off her neck for the entire night. When she walked onstage with A Star Is Born co-writers Marc RonsonAnthony Rossomando and Andrew Wyatt, everyone in the audience could see Gaga’s rare piece of jewelry shimmering from the stage.

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“If you’re at home and you’re sitting on your couch, all I have to say is this is hard work. I’ve been working for a long time,” she said during her acceptance speech. “It’s not about winning. What it’s about is not giving up.”