Contact

Get in touch with us for professional gemstone and diamond testing, certification, and lab services.

Email Us

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Address

Piyerloti Caddesi & Dostlukyurdu Sokak No:3, 34122 Fatih / Istanbul / Turkey

Email

info@globalgcl.com

Phone

+90 212 516 27 56

Gem Certification Laboratory

Send us your inquiry and our team will respond quickly with clear guidance and support