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GFCO GEM LAB is a Swiss gemological laboratory brand owned by the company Geafinco SA based in Tramelan (Switzerland). Our objective is to provide customers with quality services at competitive prices with a focus on microscope examination; the equipment used for testing as well as all important information regarding treatment for rubies, sapphires, fancy sapphires and emeralds feature in our reports. Professionalism, integrity and transparency are our core values.

"As people have personality, gemstones do too. Their appearance is function of many factors such as color, size, cutting, clarity, lighting conditions and influenced by the surrounding jewel if mounted. Their inclusions are of special interest for the gemologist, revealing much about them, and, by the landscapes drawn, take the observer in a voyage into another world." P.Cattoni, Director and Accredited Gemologist

STAR REPORT (15.4 x 22cm)



MEDIUM REPORT (7.8 x 10cm)



POCKET REPORT (9.25 x 6.25cm)



GRADER REPORT (15.4 x 22cm)



JEWELRY REPORT (15.4 x 22cm)



MEDIUM JEWELRY REPORT (7.8 x 10cm)



DIAMOND JEWELRY REPORT (15.4 x 22cm)



SEALED POCKET REPORT (9.25 x 6.25cm)



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DISCLAIMER: GFCO reports represent the opinion of at least one accredited and experienced gemologist about the items at the time of examination using the equipment mentioned in the report with the subsequent possible limitations. The laboratory cannot have knowledge of any potential treatment or modification of the item after the issuance of the reports. Submission of an item for testing at the laboratory signifies acceptance of the laboratory Conditions with no limitation. The laboratory reserves the right to amend the Conditions at any time without prior notification. Any party buying or selling items based on GFCO reports is doing it at his own risk and understands that the report fees taken by GFCO may be of insignificant value in proportion to the value of the item as no insurance and no compensation of any kind is provided in case of omission or mistakes. Reports are issued without any guarantees. Geafinco SA or any company authorized to issue reports bearing the trademark GFCO GEM LAB® including its employees shall not be liable for any mistakes or omissions. Images of the reports as shown at the website are indicative and not contractual, minor differences may exist function of issuance dates. The parties agree to submit any dispute in connection with reports to the exclusive jurisdiction of the Courts of the Canton of Berne, Tramelan, Switzerland. Thank you for trusting GFCO GEM LAB®; Contact: Geafinco SA, Grand-rue 93, 2720 Tramelan, Switzerland. Tel. +41791303379; Email: info@gfcogemlab.ch. Website: www.gfco.ch/www.gfcogemlab.ch. Any modification to reports or reproduction of reports is strictly prohibited.