Before Lady Gaga set foot on the Oscars 2019 red carpet, rumors swirled that her outfit would include a really large — and really famous — diamond. Well, the “Shallow” singer, A Star is Born actress, and Oscar nominee did not disappoint at the 91st Academy Awards on February 24 at the Dolby Theater in Los Angeles, California. Gaga stunned in a strapless Alexander McQueen gown topped with one dazzling necklace featuring the iconic Tiffany & Co. Tiffany Diamond.

Gaga has kept it real classy this 2019 award season, opting for retro-inspired dresses, sweeping up do’s, and polished statement jewelry — the most stunning being this brilliant, cushion cut diamond. “The chance to work with such an amazing piece of design and history tonight is a creative dream come true,” says stylists Sandra Amador and Tom Eerebout. “There are so many beautiful jewels in the world, but the radiant Tiffany Diamond is truly exceptional, which is just so fitting for Lady Gaga.” Last month, Gaga accidentally twinned with Judy Garland at the 2019 Golden Globes and she seems to draw continuous inspiration from industry legend Audrey Hepburn, as with her Oscars outfit of a classic black gown by Alexander McQueen and chignon hairstyle. The 128.54 carat yellow stone has only been worn by two people in its nearly 150-year history — to a ball in 1957 by Mary Whitehouse and then by Hepburn herself in a publicity photo shoot for the iconic 1961 rom-com Breakfast at Tiffany’s. (Photo via Jeff Kravitz/FilmMagic)

Purchased by Tiffany & Co. in 1877 for just $18,000, the Tiffany Diamond was originally 287 carats before it was shaped into 128.5 carats and expertly cut to highlight its quality and radiant yellow color. Now considered to be priceless, the gem was most recently reset with over 16 cushion-cut diamonds and 46 round brilliant cut diamonds totaling 95 carats in a stunning platinum necklace fit for a queen. Or for a Lady Gaga, obvi. (Photo via Bettmann/Getty)

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