Rough EMERALDS.—Those of the first and coarsest sort, called plasmes, for grinding, are worth 27 shillings sterling the marc, or 8 ounces. The demi-morillons, 81. sterling per marc. Good morillons, which are only little pieces, but of fine colour, from 131. to 151. per marc. Emeralds, larger than morillons, and called of the third colour or sort, are valued at from 501. to 601. the marc. Emeralds, called of the second sort, which are in larger and finer pieces than the preceding, are worth from 651. to 751. per marc. Lastly, those of the first colour, otherwise called negres carter, are worth from 1101. to 1151.