Article continues below advertisementIsha Ambani's Cartier Toussaint NecklaceSource: VOGUE India/YouTubeIsha Ambani is the daughter of Mukesh and Nita Ambani.Indian billionaire heir Isha Ambani had all eyes locked in when she arrived at the Met Gala 2025 in a $100 million-worth of diamond necklace. The double-tiered jewelry boasts 481.42 carats of natural colorless diamonds and an 80.73-carat cushion-cut diamond pendant.The piece resembled the Cartier diamond necklace Anne Hathaway wore in Ocean's 8.