Diamonds and precious stones, a popular account of gems .. . Fig. I02.—Flat Diamond of the Grand Mogul. four upper edges bevelled down exactly like theedges of ancient Venetian mirrors. Even at thepresent day this predilection has not disappeared,and similar stones are still those that are mosthighly prized by the inhabitants of India and Ara-bia. As an example of Indian cutting, we give afigure of a flat diamond that belonged to the GrandMogul. There are two principal forms into which dia- DIAMOND-CUTTING. 259 monds are cut, the brilliant and the rose, both ofthem subordinate, in the first pl
Diamonds and precious stones, a popular account of gems .. . Fig. I02.—Flat Diamond of the Grand Mogul. four upper edges bevelled down exactly like theedges of ancient Venetian mirrors. Even at thepresent day this predilection has not disappeared,and similar stones are still those that are mosthighly prized by the inhabitants of India and Ara-bia. As an example of Indian cutting, we give afigure of a flat diamond that belonged to the GrandMogul. There are two principal forms into which dia- DIAMOND-CUTTING. 259 monds are cut, the brilliant and the rose, both ofthem subordinate, in the first place, to the thicknessof the stone. To each of these two types is attacheda number of derivative and more simple Fig. 103.—Natural Octahedral Diamond. The starting point for the modern diamond, asfor the ancient Indian form, is the simple octa-
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectgems, booksubjectprec
