GFCO GEM LAB® 
A TRADEMARK OF GEAFINCO SA, SWITZERLAND 
Gemstone Identification Brief Report With Photograph

GFCO GEM LAB® — Swiss Gemological Reports for Colored Gemstones GFCO GEM LAB®, operated by Geafinco SA (Switzerland), provides expert gemological reporting for ruby, sapphire, emerald, spinel, and other fine gemstones. Each report represents the professional opinion of qualified gemologists, based on microscope examination, inclusion analysis, and comparison with international reference samples. Treatments are disclosed clearly, and geographic origin is provided when supported by sufficient gemological evidence. GFCO certificates include QR-based or code-based online verification, allowing customers and traders to confirm authenticity instantly on the official GFCO Report Check platform. Trusted by dealers in Switzerland, Bangkok, and global colored-stone markets, GFCO offers a reliable and accessible certification service for gemstone traders.