...should be = J ( ;—the depth of the collet below = 1 1. The breadth across the table should be = \ d. of brilliants, in which the upper pyramid is a real...quite possible. The largest authenticated diamond known is that of the Rajah of Mattan in Borneo. It is of the purest water, of a pear shape, and weighs...

...setting for examination. A very remarkable discovery has lately been made, that the chemical clement boron, the base of the common substance borax, may,...quite possible. The largest authenticated diamond known is that of the Eajah of Mattan in Borneo. It is of the purest water, of a pear shape, and weighs...

...diamond is the "Braganza" found in Brazil in 1741, and preserved, in its rough state, in the Eoyal Treasury at Lisbon. It is as large as a hen's egg,...quite possible. The largest authenticated diamond known is that of the Rajah of Mattan in Borneo. It is of the purest water, of a pear shape, and weighs...

...one called the " Braganza," found in Brazil in 1741, and still preserved in its rough state in the treasury at Lisbon. It is as large as a hen's egg, and weighs 1,680 carats, or more than sixteen times the weight of the Koh-i-noor. Three large rubies, taken from...

...at. The largest diamond in the world is one called the " Braganza," found in Brazil in the year 1741. It is as large as a hen's egg, and weighs 1680 carats, or more than sixteen times the weight of the Koh-inoor. It is still preserved, in its rough state,...