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Ch. 6: Diamond

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DIAMOND.
197
tava) ; thirty-two vintenes are equal to seventy grains (graos) ; one carat is equal to four grains.
The price of diamonds is determined in trade by exam­ining accurately their character as above stated, and then the price is fixed ; the weight of the diamond is at first multiplied by itself, and the sum obtained multiplied again by the price of one carat. A brilliant, for instance, -would weigh two carats, and on examining its properties, if good, its price would be found to be forty-four francs. We pro­ceed in the following manner to get at the full value of the diamond: 2 x 2 x 44 = 176 francs. We do not always, how­ever, arrive at the correct result. If the brilliants are very large, and exceed the weight of eight or ten carats, it is difficult to arrive at a standard. I will endeavor to give below a table of the prices of the diamond in Holland, France, England, Germany, and the United States, as far as ascertained, and as near to the actual price current as I could obtain.
Rough diamonds fit for cutting are worth ten or twelve francs per carat ; any diamond exceeding the weight of one carat is estimated by the square of its weight multiplied by eleven or twelve francs as the average price.
Brilliants of three grains are in much demand, and are worth fifty francs per carat. Those of three carats, used for centre-pieces in necklaces, are sometimes worth four hundred francs. Rose-diamonds for mounting, and forty
Ch. 6: Diamond Page of 515 Ch. 6: Diamond
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