Lady Gaga Is Breathtaking in Black Gown, Gloves and 141-Year Old Diamond at the 2019 Oscars

The 'A Star Is Born' nominee is the epitome of Hollywood glamour at the Academy Awards.

Lady Gaga is the epitome of a movie star at the 2019 Oscars. 

The A Star Is Born leading lady arrived for her big night in a black strapless Alexander McQueen gown and matching gloves. The bustier dress features a floor-trailing skirt and exaggerated shape at the hips. 

Gaga adorned herself with the iconic Tiffany Diamond from Tiffany & Co. on her neck, a 141-year diamond that was unearthed in 1877 and reportedly worth over $30 million. The yellow diamond weighs over 128 carats, and Audrey Hepburn wore the stunner last during a photo shoot for Breakfast at Tiffany's in 1961. 

The pop star glammed up with an elegant updo, icy blue liner on the lash line and glossy pink lips. 

She is nominated for Best Actress for her role as Ally in the film, co-starring and directed by Bradley Cooper. She is also nominated for Best Original Song for the movie's hit single, "Shallow." 

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ET's Kevin Frazier spoke with Gaga on the red carpet on the possibility of her walking away with an Oscar tonight. 

"I haven’t really been able to fully process that," said Gaga. "It’s one of those things. You just never know what's going to happen. And the truth is, I’m just happy to be here in the presence of such incredible artists. I mean so much talent in this room. And it's been my dream since I was a little girl that I would be able to, you know, even work as an actress, to work as a musician, to make it in this world and I just can’t believe that I’m here and I'm very happy. My whole family is here with me." 

The newly single star, who recently called it quits from fiancé Christian Carino after two years together, will perform the tune alongside Cooper on tonight's stage. We can't wait to see what outfit she'll change into! 

The last few months have been a whirlwind for Gaga. Her critically acclaimed performance and original music for the film have nabbed her many nominations. She has been slaying awards season from the Golden Globes to the GRAMMYs in jaw-dropping designer gowns. 

Click through all the red carpet arrivals in the gallery below: