India, Oct. 14 -- Nita Ambani was one of the celebrities who attended Manish Malhotra's grand Diwali bash at his Mumbai residence on October 12. She attended the festivities with Radhika Merchant and Shloka Mehta.

Though the sequinned Manish Malhotra saree and the boulder-sized emerald earrings mesmerised the internet, the real piece de resistance of her look, however, was the Sac Bijou, Hermes' bejewelled reincarnation of its most popular bag-the Birkin. Here's everything we know about Nita Ambani's super-exclusive and expensive accessory.

According to Sotheby's, the rare Sac Bijou bag is the most expensive Hermes Birkin bag in the world. There are only three Sac Bijou Birkins in existence, and each comes with a $2 million (approximate...