Cullinan Diamond
The Cullinan Diamond is the largest gem-quality rough diamond ever found, weighing , discovered at the Premier No. 2 mine in Cullinan, South Africa, on 26 January 1905. It was named after Thomas Cullinan, the mine's chairman.
Jewels of the Nizams
There are 173 jewels, which includes emeralds weighing nearly , and pearls exceeding 40,000 chows. The collection includes gemstones, turban ornaments, necklaces and pendants, belts and buckles, earrings, armbands, bangles and bracelets, anklets, cufflinks and buttons, watch chains, and rings, toe rings, and nose rings. Among them is the seven-stringed Basrah pearl necklace, known as Satlada, which has 465 pearls embedded in it. One of the prized possessions in the collection is the Jacob Diamond, the fifth largest diamond in the world weighing 184.75 carats, which was found by the last Nizam, Osman Ali Khan, in the toe of his father’s shoe at Chowmahalla Palace and he himself used it as a paper weight for a long time.