Lady Gaga made a showstopping entrance at the 2019 Met Gala on Monday, held annually at the Metropolitan Museum of Art in New York City.

The multihyphenate star arrived wearing a large hot-pink gown, but quickly changed into two other dresses. She later removed both layers to reveal a sparkly bra and jeweled tights, and even made time to accessorize.

She applied extra lipstick in between one set of outfits, and then took colorful rings out of a box and wore them for the remainder of her performance. One ring, in particular, stood out from the rest, as it closely resembled her engagement ring from a former fiancé.

lady gaga met gala engagement ring

Foto: Lady Gaga poses at the 2019 Met Gala.sourceRabbani and Solimene Photography/Getty Images

Specifically, the pink diamond she wore on her pinky finger looked a lot like the engagement ring previously given to her by former fiancé Christian Carino. It was estimated to have been worth $300,000.

lady gaga met gala rings

Foto: Lady Gaga sits on the stairs at the 2019 Met Gala.sourceGetty Images

Gemologist and diamond expert Grant Mobley previously told INSIDER that Gaga's "timeless design" featured a rare, high-quality stone, and was possibly a "pink sapphire around six carats, surrounded by a halo of round diamonds looking to be around three carats in total."

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Foto: Lady Gaga shows off her engagement ring from Christian Carino in November 2018.sourceJon Kopaloff/Stringer/Getty Images

Read more: Lady Gaga's pink engagement ring is estimated to be worth $300,000, and it looks a lot like the ones Princess Eugenie and Kate Middleton wear

Lady Gaga and Carino started dating in February 2017 and confirmed their engagement in October 2018. However, the couple split after two years of dating in February 2019.

lady gaga Christian Carino

Foto: Lady Gaga and Christian Carino dated for two years.sourceMichael Kovac/Getty Images

However, according to E! News, the gem simply resembled her previous engagement ring and was one of five rings designed by Tiffany & Co. and worn by Lady Gaga on the Met Gala red carpet.

In total, Lady Gaga is said to have worn more than $2 million worth of jewelry on Monday night.