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" ... is as the squares of the respective weights The average price of rough diamonds that are worth working, is about £2 for the first carat. "
Handbook to the Industrial Department of the International Exhibition, 1862 - Page 116
by Robert Hunt - 1862 - 443 pages
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A Dictionary of Chemistry: On the Basis of Mr. Nicholson's, in which the ...

Andrew Ure - 1821 - 436 pages
...another of equal colour, transparency, purity, form, &c. isas the squares of the respective weights. The average price of rough diamonds that are worth working, is about L. 2 for the first carat. The value of a cut diamond being equal to that of a rough diamond of double...
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Encyclopædia Americana: A Popular Dictionary of Arts, Sciences ..., Volume 2

Francis Lieber, Edward Wigglesworth, Thomas Gamaliel Bradford, Henry Vethake - 1830 - 612 pages
...that of another of equal color, transparency and purity, is as the squares of the respective weights. The average price of rough diamonds, that are worth working, is about £2 for the first carat. The value of a cut diamond is equal to that of a rough diamond of double weight,...
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A Dictionary of Chemistry and Mineralogy: With Their Applications

Andrew Ure - 1831 - 980 pages
...another of equal colour, transparency, purity, form, ike. is as the squares of the respective weights. The average price of rough diamonds that are worth working, is about -'-'.'_' for the first carat. The value of a cut diamond being equal to that of a rough diamond of...
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The Engineer's and Mechanic's Encyclopædia: Comprehending ..., Volume 1

Luke Hebert - 1835 - 816 pages
...another of equal colour, transparency, purity, form, &c., is as the squares of the respective weights. The average price of rough diamonds that are worth working is about two pounds for the first carat ; and the value of a cut diamond being equal to that of a rough diamond...
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Encyclopædia Americana: A Popular Dictionary of Arts, Sciences ..., Volume 2

Francis Lieber, Edward Wigglesworth - 1835 - 608 pages
...that of another of equal color, transparency and purity, is as the squares of the respective weights. The average price of rough diamonds, that are worth working, is about £2 for the first carat. The value of a cut diamond is equal to that of a rough diamond of double weight,...
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The Engineer's and Mechanic's Encyclopædia, Volume 1

Luke Hebert - 1836 - 814 pages
...another of equal colour, transparency, purity, form, &c., is as the squares of the respective weights. The average price of rough diamonds that are worth working is about two pounds for the first carat ; and the value of a cut diamond being equal to that of a rough diamond...
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The Popular Encyclopedia;: pt. 1: On the rise and progress of literature ...

Sir Daniel Keyte Sandford - 1836 - 502 pages
...of another of equal colour, transparency, and purity, is as the squares of the respective weights. The average price of rough diamonds, that are worth working/ is about £2 for the first carat. The value of a "cut diamond is equal to that of a rough diamond of double...
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The British Cyclopaedia of the Arts, Sciences, History, Geography ...

Charles Frederick Partington - 1838 - 1116 pages
...that of another of equal colour, transparency and purity, is as the squares of the respective weights. The average price of rough diamonds, that are worth working, is about '21. for the first carat. The value of a cut diamond is equal to that of a rough diamond of double weight, exclusive...
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A Dictionary of Arts, Manufactures, and Mines: Containing a Clear ..., Volume 1

Andrew Ure - 1844 - 756 pages
...diamond pf double weight, exclusive of the cost of workmanship. The weight and value of diamonds are reckoned by carats of 4 grains each ; and the comparative...polished diamond of one carat must have taken one of 2 carats, its price in the roueh state is double the square of 21., or 81. Therefore, to estimate the...
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Encyclopædia Americana: A Popular Dictionary of Arts, Sciences ..., Volume 2

1850 - 638 pages
...of another of equal color, transpa- . rency and purity, is as the squares of the respective weights. The average price of rough diamonds, that are worth working, is about £2 for the first carat. The value of a cut diamond is equal to that of a rough diamond of double weight,...
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