(32) Star of Minas
This large diamond, which was found in 1911 at the Bagagem mines, Minas Geraes, Brazil, had the shape of a dome with a flat base, and weighed in the rough 35·875 grams (174¾ carats).
The large stone called the ‘Braganza,’ in the Portuguese regalia, which is supposed to be a diamond, is probably a white topaz; it weighs 1680 carats. The Mattan stone, pear-shaped and weighing 367 carats, which was found in the Landak mines near the west coast of Borneo in 1787, is suspected to be quartz.
COLOURED DIAMONDS