About This Book; About Your Presidium Synthetic Ruby Identifier - PRESIDIUM Synthetic Ruby Identifier Manual Del Usuario

II. About this Book
Thank you for purchasing the world's first and only Synthetic Ruby
Identifier ("SRI" or "device") by Presidium.
This handbook is designed to help you set up your device and
describes all you need to know about how to use your gemstone
testing device accurately and take care of it, in line with its
requirements. Please read these instructions carefully and keep them
handy for future reference.
This book also contains the terms and conditions in relation to
the use of the device including the Disclaimer, EXCLUSION and
Limitation of Liability clauses stated above in Section I.
III. About the Synthetic Ruby Identifier by
Presidium
The Presidium Synthetic Ruby Identifier ("SRI") is a revolutionary
new device developed to help identify amongst rubies, the synthetic
ruby that is created through the flame fusion method. Researched
and developed by Presidium in collaboration with the renowned Gem
and Jewelry Institute of Thailand (GIT) near the traditional source
hub of rubies, the Synthetic Ruby Identifier is a breakthrough in the
development of gemological instruments, as it is the world's first and
only tool, aside from expensive laboratory equipment, that identifies
certain common synthetic rubies.
The Synthetic Ruby Identifier is designed as a test on known ruby
stones and to differentiate the synthetic flame fusion rubies from
natural and other forms of synthetic ruby. One way to ascertain if
the gemstone is a ruby is to measure the thermal conductivity of the
gemstone. If the gemstone is a ruby, the Synthetic Ruby Identifier can
be used to further check if it is a synthetic flame fusion ruby.
Using the knowledge that when gemstones are subjected to deep
UV irradiation, the difference in their light transmittance is significant
enough to aid in differentiating known rubies, the Synthetic Ruby
Identifier measures the UV light transmittance ability of ruby stones,
as research has found that synthetic flame fusion rubies are
1
consistently more transparent to deep UV light.
1
Sim, Hwa San; Leelawatanasuk, Thanong & Saengbuangamlam, Saengthip. "Handheld
Synthetic Ruby Screener based on UV-VIS Light Absorption" in GIT 2012 (Bangkok; Gem
& Jewelry Institute of Thailand, 2012), pp199-204.
4