Diamonds and precious stones, a popular account of gems .. (1874)
Dieulafait, Louis, b. 1830, Sanford, Fanchon, tr · New York, Scribner, Armstrong, and Company · leaf 285
as designed in order to take 264 PRECIOUS STONES. advantage of certain clear portions of rough dia-monds, which could not be otherwise used with-out great sacrifice of material. Fig. m will showthe appearance of stones cut in this manner. Theform on the left represents the upper portionof the… … Fig. III.—The Star invented by Caire. properly so called; and the polishing. Specialworkmen are required for each one of thesebranches.^ It is to the splitter that the rough diamond isgiven; his quick penetration and ready action areto determine the future of the stone. First of all, he examines…
Precious stones · Diamonds · Gems
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