The infamous Patiala Necklace The Patiala Necklace was a necklace created by the House of Cartier in 1928. It was made for and named after Bhupinder Singh of Patiala, the then ruling Maharaja of the state of Patiala. It contained 2,930 diamonds, including as its centerpiece, the world's seventh largest diamond, the 428 carat "De Beers". The necklace disappeared around 1948. Part of it was recovered fifty years later with the De Beers diamond missing, along with many of the larger stones.