Shank |
The part of ring which encircles
the finger to which the settings are soldered. |
Shoulder |
That part of a ring where the
shank and the settings meet. |
Simulant |
A metal or gemstone that
masquerades as a more precious metal or stone. Not to be confused with a synthetic. |
Sleeper |
A fine wire ear-ring worn to
keep the hole in a pierced car. |
Soude
stones |
A term used to describe
doublets, as in soude emeralds. |
Specific
gravity |
The ratio of the density of the
substance to water. Useful in identifying gemstones. |
Star |
A ray effect seen in some
cabochon-cut stones, for example star rubies. |
Step out |
A stone cut so that all the
facets are parallel to the girdle. |
Striated |
Banded minerals such as
malachite are sometimes described as striated. The term is also used to describe the
growth lines in natural and synthetic gemstones visible usder high magnification. |
Synthetic |
A man-made stone that has the
same chemical and physical properties as the stone it imitates. |