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GSL - the name you can trust
GSL (Gem Studies Laboratory) was started over twenty
years ago to meet the demand in Australia for a first-rate diamond
laboratory. Today it has become the best known independent diamond
certification and gem identification laboratory in Australia.
Over the years that GSL has been in business we have identified and
valued countless diamonds and coloured gemstones, issued hundreds of
opal and coloured stone certificates and tens of thousands of diamond
certificates.
The complete gem testing laboratory
With our genuine commitment to the Australian gem and jewellery
industry, and our to desire to improve and enrich it, we have access to
the latest equipment and the most sophisticated instruments that allow
us to offer a wide range of services to our clients. These include;
- Diamond Certification
- Diamond Fingerprinting
- Pearl X-ray Testing
- Gemstone Authentication
- Gem & Jewellery Photography
- GSL's Australian Opal and Gemstone Photographic Library
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Experience and Commitment
Our clients come to us for our experience and qualifications, but
most importantly for our commitment to customer service. In the last
five years we have received two Australian Achiever Awards - for the
overall operation of our laboratory and our Australian Opal and
Gemstone Photographic Library.
Jewellery retailers, manufacturers, and wholesalers all use the
services provided by GSL, along with diamond and gemstone importers,
Australian Customs, the NSW and Federal Police Forces, the Department
of Public Prosecutions, antique dealers and Australia's foremost
auction houses.
The people who bring their valuable gems to GSL
come for the certainty. We take our client's trust very seriously and
have built our reputation on it.
Recording Australia's Gemstones
Earning national recognition in 2001, the Australian
Opal and Gemstone Photographic Library was started with the
realisation that as many as 95 per cent of Australia's best opals end
up overseas. It now documents some of the finest gemstones and opals
in Australia and offers future generations the chance to access a
fantastic visual reference of Australia's opal and gemstone history.
The images are widely used in both Australian and international
publications.
Our partnership with the GAA
In 2003 GSL and GAA (the Gemmological Association
of Australia) formed an historic alliance as part of our ongoing
commitment to the Australian gem and jewellery industry. GAA's
endorsement of GSL as its diamond certification and gem testing
laboratory ensures that our facilities meet the highest standards and
that all techniques and equipment used in our laboratory are state-of-
the-art and in line with the latest international standards. When you
come to GSL you are guaranteed the best service available from the
best team in the business!
The GSL Team
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Bill Sechos
With over twenty five years experience, Bill holds a science degree from the University of Sydney and received the Australian Prize for his achievements whilst completing the GAA Diploma of Gemmology. He has served as the GAA president and is actively involved with their training programmes as senior lecturer and chairman of the GAA Board of Studies and Examinations. |
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Rudy Weber
At age 15 Rudy was already helping his father find, cut and
polish gems. He trained to become a licensed diamond grader `
with the Diamond Grading Laboratory in London, where + he met
Bill and the GSL partnership was formed. With a love of
photography, Rudy set up GSL's unique Australian Opal and
Gemstone Photographic Library. |
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Flora Theodore
GAA-trained in diamonds, Flora has been working with GSL as a
diamond grader since 1996. With her love of gemmology and her
commitment to clients, Flora is an essential member of the GSL
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Contact Gem Studies Laboratory
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