SWISS SINO GEMOLOGICAL LABORATORY GMBH
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Swiss Sino Gemological Laboratory Gmbh (abbreviated "SSGL") is a scientific private entity dedicated to gemstone testing. SSGL headquarter office lies in Tramelan (Switzerland) with the company having it operational laboratory in Bangkok in the Jewelry Trade Center - the world capital of gemstones trading. SSGL focuses on treatment detection and origin determination for rubies, sapphires and emeralds. For further information about SSGL, please visit the about SSGL section.
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Inclusion gallery
A good microscope remains the most important tool for the gemologist; gemstones inclusions are providing essential information regarding the presence of a treatment and to determine a probable geographic origin. To master in the use of microscope and in the knowledge of gemstones inclusions is the fundamental requirement in order to reach objective and pertinent analyzes.
under construction...more coming soon.
SSGL REPORTS
SSGL reports are the representation of Swiss values of quality and transparency: a big and clear pictures to allow for a rapid and positive identification of the item; all critical information such as treatment for precious stones always mentioned; in option, a quality grading of the gem based on a scientific method of weighting different criteria in an objective manner.
STANDARD REPORT
GRADING REPORT
GRADING REPORT (MOUNTED STONE)
EDUCATION
SSGL wishes to share and bring knowledge to everyone interested in gemology; our cursus is split over seven modules. Students can choose which subject to study and the completion of the seven essential courses leads to the award of the title of Certified Gemologist delivered by SSGL. The teaching is conducted in Bangkok in the Jewelry Trade Center, a ideal location to see thousands of gemstones and meet gem traders from all over the world. Be it to learn for the pleasure, to help you perform better as a gem trader or as a jeweler to be able to inform your customers and gain their trust, this cursus and diploma will fulfill beyond your expectations.
→ Visit our education page for more information.
SSGL QUALITY GRADING
Coloured stones quality depends on numerous factors which can be evaluated in an objective manner. The difficult part in giving an overall quality grade is to give the right weighting to each factor, this requires to create a specific method of calculation for every gem specie because of their different properties. Such method is a rational way to reach a standard for allow to meaningful comparisons but it does not remove the fact that all of us have different taste and preferences; beauty is firstly the result of a personal feeling.
Quality grading is function of three aspects made of several criteria:
- color
- clarity
- cutting
The gem weight and its rarity are playing the role of a fourth complementary aspect which can be included or left aside in quality grading because both big and small stones as well as common and rare stones can be of good quality. This aspect has more to do with pricing and if quality grading is viewed under a pricing angle, then it must be included in quality grading but with some care and explanations.
For detailed information about SSGl rules of grading, → visit our grading page.
SWISS SINO GEMOLOGICAL LABORATORY GMBH
GRAND-RUE 93, 2720 TRAMELAN, SWITZERLAND
UID (VAT ID) : CHE-153.569.078
CHID : CH03640709128
EHRA-ID : 1310291
MONDAY - FRIDAY,
9:00-12:00 / 14:00-16:30 CET
TEL: +41(0)327537444
VISIT UPON APPOINTMENT ONLY
EMAIL: info@ssgl.swiss
DISCLAIMER: SSGL only performs non-destructive tests and applies maximum precautions to avoid items to be damaged during testing. It is the client responsibility to insure the item against any damages, theft or loss of item that could occur during testing. The laboratory shall not be liable for any damages resulting from the testing or loss of the item unless proven gross negligence or misconduct. Reports issued by SSGL represent the opinion of accredited gemologists about the items at the time of examination; the laboratory cannot have knowledge of any potential subsequent treatment or modification of the items. Reports are issued without any guarantees. The laboratory shall not be liable for any mistakes or omissions. The use of reports for trading by clients is at their own risk. The client accept that items may not be testing within Switzerland facilities but in offshore facilities under surveillance and management of SSGL. Report can be verified online at the present website.