Blake Lively

The 29-year-old actress turned heads at the star-studded bash in New York on Monday as she adorned a gold, embellished Versace gown with a blue feathered train, which she paired with 130 carats of Lorraine Schwartz sapphire accessories, including an 82 carat pair of Burma earrings and a 50-carat triple sapphire ring, all of which are believed to be worth over $3.5 million, as well as a 50-carat diamond ring. The American jeweler shared the details of the former 'Gossip Girls' attire on her Instagram account.

Alongside a picture of the golden-haired beauty and her 40-year-old husband at the red carpet bash, it read: "I mean how perfect can you get?!!! Super hot couple #blakelively and #ryanreynolds at the 2017 #metball in #versace My girl blake rockin 130 carats #lorraineschwarz and #ofirajewelz #sapphires and 48 carat #lorraineschwartzjewelry #diamondrings wow#family #lovethem (sic)."

Although Blake - who has daughters James, two, and seven-month-old Ines - wore a floor length dress with a train, she has previously admitted she always questions herself why she chooses to wear ensembles with the extended piece when she struggles walking up stairs. Speaking previously, she said: "I love a train but then when I get on these stairs, I'm like, 'Why am I wearing a train?'"

Meanwhile, Blake has been credited as having "amazing hair and style" by fashion designer Michael Kors. Speaking previously, the creative mastermind said: "Blake and I have been friends for a long time and she always makes me laugh. "Her sense of humor and sunny disposition are infectious. I think the video will make people everywhere smile. "She brings charm and optimism, not to mention amazing hair and style, to everything she does."