Diamonds and precious stones, a popular account of gems .. (1874)
Dieulafait, Louis, b. 1830, Sanford, Fanchon, tr · New York, Scribner, Armstrong, and Company · leaf 283
and pavilion. This form isrepresented by Fig. 108. 262 PRECIOUS STONES. THE ROSE. In rose-cutting, the diamond is flat underneath;the upper and convex part is covered with a vari-able number of facets, systematically disposedaround a first, of which the summit occupies thecentre of the stone. If… … Fig. 109.—Holland Rose. Sometimes rough diamonds, found in the formof pears, are covered with little facets, retainingthe general form. These stones have the name ofbriolettes; they come exclusively from India, and aregenerally pierced in the upper part with a verysmall hole. No lapidary in Europe…
Precious stones · Diamonds · Gems
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