Page:A treatise on diamonds and precious stones including their history Natural and commercial.djvu/50

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DIAMOND.

ling. This rule, however, is by no means in general use. Brilliants, ifgfine, may be estimated by squaring the weight in carats, and multiplying the product by eight, which will give the amount in pounds sterling.^[1]

↑ This is an Indian rule, and is only applicable in some cases: but if there should be any natural imperfection in the stone or brilliant, or even if it be ill formed although pure, the multiplier must be taken at a much lower number; and if superlatively fine, it may be taken, in some peculiar cases, proportionably higher.

[1] This is an Indian rule, and is only applicable in some cases: but if there should be any natural imperfection in the stone or brilliant, or even if it be ill formed although pure, the multiplier must be taken at a much lower number; and if superlatively fine, it may be taken, in some peculiar cases, proportionably higher.

[1]