Diamonds and precious stones, a popular account of gems .. (1874)
Dieulafait, Louis, b. 1830, Sanford, Fanchon, tr · New York, Scribner, Armstrong, and Company · leaf 301
llow-drop. Each ofthese may be round or oval, elongated or square. The cabochon is plane, convex or concave on its 280 PRECIOUS STONES. inferior side. In the latter case it is the doublecjibochon. Concave cabochons are employed for stones mo-derately transparent, and this disposition tends… … Kig. 121.—Cutting of Precious Stones other than the Diamond. It serves better than any other form to display thespecial beauties of these different stones. The stones cut in step or pavilion form aregenerally not very thick, and there are usually moresteps or degrees on the lower than the upper…
Precious stones · Diamonds · Gems
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Libro primo [-quinto] d'architettvra ... (1566)](https://img.insideoutlibrary.com/img/200/ia-libroprimoquinto00serl-51-78.webp)
