Natasha Poonawalla, the wife of billionaire Adar Poonawalla, was recently seen wearing the Marie-Thérèse Pink Diamond ring, reportedly worth ₹126 crore. She wore the rare diamond ring to Isha Ambani's Pink Ball at London's British Museum. It dates back to the mid-18th century and is believed to have been passed down from Queen Marie Antoinette to her daughter, Marie-Thérèse d'Angoulême.