A treatise on gems, in reference to their practical and scientific value : a useful guide for the jeweller, amateur, artist, lapidary, mineralogist, and chemist : accompanied by a description of the most interesting American gems, and ornamental and architectural materials (1838)
Feuchtwanger, Lewis, 1805-1876 · New York : Printed by A. Hanford · leaf 49
and collet, « and terminate in steps ; the crown has usually two and the collet four or five facets on each side ; the form of the stones may be of four, six, eight, or twelve sides, or may be long or round. This cut is particularly applicable to coloured gems, as it reflects the light in a high…
Precious stones · Building stones · Pearls · Corals
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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