We read marvellous records, (in modern books, too,) of the high prices realized for diamonds; but according to Dr. Ure, "it does not appear that any sum exceeding one hundred and fifty thousand pounds has ever been given for a diamond." This statement, made in the year 1820, has since received signal confirmation. On July 20, 1837, the Nassuck diamond was sold by auction in London, and realised only 7,200l., though it was estimated by the East India Company to be worth 30,000l. This diamond was among the spoils which were captured by the combined armies, under the command of the Marquis of Hastings, in the British conquest of India, and formed part of the "Deccan booty." This magnificent gem is as large as a good-sized walnut, weighs 357-1/2 grains, is of dazzling whiteness, and is as pure as a drop of dew. After the above sale, it was purchased by the Marquis of Westminster, who more than once wore it on the hilt of his court sword; it was presented by his lordship to the Marchioness of Westminster, on her birth-day, along with the Arcot diamond ear-rings, once belonging to Queen Charlotte, and disposed of at the above sale for 11,000l. The Great Mogul's diamond, about the size of half a hen's egg, and the Pitt diamond, are well known. Among the crown jewels of Russia is a magnificent diamond, weighing 195 carats: it is the size of a small pigeon's egg, and was formerly the eye of a Brahminical idol, whence it was purloined by a French soldier; it passed through several hands, and was ultimately purchased by the Empress Catherine, for 90,000l. in ready money, and an annuity of 4,000l. One of the largest diamonds in the world was found in the river Abaite, about 92 miles N. W. of the diamond district of Serro do Frio, in Brazil: it is of nearly an ounce in weight, and has been _estimated_ by Roma de l'Isle at the enormous sum of 300 millions. It is uncut; but the king of Portugal, to whom it belonged, had a hole bored through it, in order to wear it suspended about his neck on gala days. No sovereign possessed so fine a collection of diamonds as this prince. In 1846, the Brazilian journals announced that a negro had found, in the diamond district of Bahia, a rough diamond weighing nearly an ounce. The approximative value was stated at 45,000l., but it was sold by the finder for 35l.