About Your Presidium Gem Tester - PRESIDIUM Gem Tester II Manual Del Usuario

III. About your Presidium Gem Tester
The Presidium Gem Tester is based on the invention of
Professor Julian Goldsmid from the University of New
South Wales in Australia. It was developed to distinguish
between diamonds and its other simulants using the
principles of thermal conductivity.
Diamonds, with their exceptional heat conductivity
properties are unlike any other simulants, and are
therefore not easily replicable.
The Presidium Gem Tester probe consists of two linked
thermometers: one, which is heated electronically, while
the other is cooled by the gemstone being tested. The
difference in temperature creates an electrical output,
which is then amplified and displayed on an analog dial.
The Presidium Gem Tester is now equipped with a
Color Stone Estimator display to assist the user in
distinguishing popular colored gemstones from each other.
It is to be noted that natural and synthetic gemstones
have similar physical and optical properties. As such,
Presidium Gem Tester does not distinguish between
natural and synthetic gemstones.
As with all thermal testers in the market, the tester is
not able to differentiate between natural Diamonds and
Moissanite.
The Presidium Gem Tester has been subjected to
thorough factory quality control, and will
generally give a clear and reliable reading of the
gemstone being tested under proper use. However,
you are advised to conduct further supporting tests.
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