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Ch. 10: Gem Cutting Engraving

Ch. 10: Gem Cutting Engraving Page of 296 Ch. 10: Gem Cutting Engraving Text size:minus plus Restore normal size   Mail page  Print this page
264
PRECIOUS STONES.
advantage of certain clear portions of rough dia­monds, which could not be otherwise used with­out great sacrifice of material. Fig. 111 will show the appearance of stones cut in this manner. The form on the left represents the upper portion of the stone; the other two figures are alterna­tive forms in which the lower portion of the stone may be cut.
The cutting of the diamond includes three series1 of operations: the splitting or cleaving; the cutting,
properly so called; and the polishing. Special workmen are required for each one of these branches.1
It is to the splitter that the rough diamond is given; his quick penetration and ready action are to determine the future of the stone.
First of all, he examines very carefully the little
1 The illustrations in this section relating to diamond-cutting are taken from fine water-colour drawings sent from Amsterdam and executed specially for this work.
Ch. 10: Gem Cutting Engraving Page of 296 Ch. 10: Gem Cutting Engraving
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